if you want to race, i would recommend running smaller races, there are some small races in baja with little traffic 180-250 mile range to get your feet wet. you wont need multiple pit crews chasing you up and down the peninsula or multiple fuel stops to account for, or run the risk of needing to rebuild your entire car because of the mortality rate.
then sign up and pre-run the baja 500 this year. sign up and pre-run the baja 1000 too. dont race them honestly your first year trying to run either of those races in my opinion would be asking for a nightmare. even the most well prepared teams, with multiple chase trucks, tons of fuel and spare parts, still get stranded in the desert for 30+ hours without a blink of an eye. you need to have some small races under your belt to get to be able to understand how it works, what it takes, pre-run the larger races to see how the logistics pan out, you naturally want to think about hopping in a race machine and running the longest race in north america and having an awesome experience. what you arent thinking is how do you plan fuel stops, how often to plan fuel stops, how do you have a team with fuel and spare parts and spare tires at fuel stops in time since sometimes the paved roads they travel puts the chase teams apart from the car so far you cant radio them and they cant keep up with you at race pace. what happens when your chase team needs to fuel up and they are in an area where all the fuel stations within 100 miles close at 10pm, you need to go down and spend a week or more pre-running to figure out these kinds of logistics, understand that if your course takes you down one coast, then cuts back over to the other thru the desert, you will HAVE to have a chase team on each coast because the team will not be able to chase you across and beat you to the other side. in most cases, if your team sets up for a pit, and services you and you leave the pit at race pace, they still have to pack up, and very well may not be able to reach the next pit before you get there unless you have a half dozen trucks spaced across the peninsula in strategic locations. you have to plan all of this, everyone has to know their job, everyone has to stick to schedule, and you have to anticipate and plan for what will likely be inevitable, a crash, a part failure, running out of fuel, multiple flats or broken driveline that strands you in an area between pits where your crew is no longer in that immediate area waiting for you and is already out of communication range and doesnt realize you are stranded. everyone needs to know what to do when something like that happens because it WILL happen.
personally, this is just purely from my standpoint as to what i have seen. getting yourself a stock 4 seat NA RZR and take the back seats out and get the storage boxes to go where the seats were. stack things like spare parts, tools, stack fuel cans on it everywhere you can, carry at least one spare tire and possibly think about using tire blocks in all of your tires, map out the course and research it and know where every single fuel station is, and hotel is everywhere near your route. know how far your machine will run on a tank of fuel and know when you need to stop, where you need to stop, research and know what time all of those stations close, go down and pre-run for the first year and then go watch the race the first year. use a course map, pretend you are a chase team and are following the course. try and make it to the pits to be able to watch the leaders come thru and pit. then jump back in the vehicle and chase down further to the next pits and watch again. learn how hard it is, see how much the logistics matter, you gotta be thinking about fuel and food and chasing your leaders teams which in recent years are getting so fast and setting blistering paces that its hard to keep up with them. wear yourself out chasing the race for the first year to give yourself a better idea of what your chase team will also be doing while you are in the car. you can appreciate the necessity of chase teams and understand what they have to do in order to make your race go flawlessly. and by seeing first hand what the chase teams go thru and how fast paced they must be to stay in front of the racer pit after pit, you can more accurately plan and figure out the logistics on the next race having an understanding of what you must plan and strategize for in order to help make your race go as you plan.
and always plan for and prepare a backup for everything. trucks breaking down, flats, wrecks, road blocks, chase teams getting stranded. you getting stranded on course and not being able to reach your teams thru communications. cell phones that work, satellite phones that work, strong radios in the chase vehicles. spare parts. fuel and food so that you can be self sustaining for a week while you pre-run to learn the logistics. the allure of the baja 1000 is amazing, mesmerizing, but dont think you are gonna pull off a Johnny Angal and win it your first year. baja is rough and you better have your stuff together or you are in for a LONG and painful race.