Joey d you said you would need every driver support that's easy just like BITD you have membership/ utvra membership to race BITD event. Well to race UTVWC you also have to have driver association membership just saying. If you build it they will come hell you and mad media already built it.
Starting a Membership Organization is not the answer and will not work. BITD is not going to turn away an entry fee, because you don't belong to an 3rd party Org. Not going to happen! What your proposing is almost Union like and that does not work. Class Coalitions have been tried before and their is a reason you don't hear or know about them. They did not work.
Right now what you have is a single class Rep, who is also the Tech guy and rule maker, and he also races and is tied to a manufacture. IMO this is to much for one person have control of and has been questioned as being a conflict of interest. Plus this one person is also effecting possible rules with another series (Score) that they are not technically involved with.
Lets not reinvent the wheel, lets just tweak the current process and make sure that all participants in the class have a say, and that any future decisions are brought forth to the class and not decided by one person.
IMO I think the best thing to do is to let the race series take over the Tech, let them know besides safety what things you need inspected. Then request that the Race Promoter allows you to have a Rep system that would give the Race Promoters direct communication with the class. It also allows the teams to have a contact for all things related to the class. The Rep's look and review any possible future rule changes, which ultimately are voted on by all BITD & Score class 1900 members. You could even have an open ballet vote so everyone gets to see everyone's vote, so there is no questionable conspiracies.