Correct me if I'm wrong,but I get the feeling that you would like to attend (race) in the Houston MSR race next month.
I personally don't think there are enough days between now and then to properly prepare a car,get all the necessary safety gear,and get your shit together enough to have a satisfactory experience.Don't take this as a negative comment,it's just that I've seen enough teams try to half-ass it enough (again,not in a negative way).....
Nothing will turn your friends/teammates against the idea than dropping a shit-ton of money and blowing up/failing tech/not getting to race.A $500 race car sounds great,but in reality,it takes a whole lot more in terms of time,money,preparation to run for an entire weekend.
Your best bet is to get your potential teammates together and attend the race as spectators.You can see what to do,what NOT to do,what type of equipment/supplies to bring.and what to expect on a real race weekend,without the stress of actually having to be in the race.Who knows,maybe you just wander the pits and find a team you can shadow for the weekend to get the big picture.
Again,don't take any of this a trying to discourage you from trying,just my observations from what I've seen happen more times than I can count.
45+x Loser.....You'd think I would learn......
5x I.O.E Winner 1 Heroic Fix Winner 1 Org Choice Winner
2x I Got Screwed Winner 2x Class C Winner
(Still a Class B driver in a Class A car)