"Field Day report" (LOL);
First of all, one must learn to actually DRIVE a rally car if planning on entering an ARA Performance Rally.
Get some instruction at Team O'Neil's rally school, or Dirt Fish, or where ever else.
Team O'Neil is NOT doing any prep work anymore (ONLY the school), and for our rides, it looks like O.D.D. Racing in Colorado is one of the better prep shops, which also has an 'arrive and drive' program using their own cars.
McKenna Motorsports also has an arrive and drive program with both R2,(1.0 EcoBoost Fiesta FWD rally cars with Sadev sequential gearboxes and full Reiger gravel suspensions) and R5 Fiestas (
AWD, 1.6 EcoBoost modded/built for more power, Sadev sequential, much body work and aero, one step below a full-on WRC class/level ride), but not too sure that they do prep work on a customer's car (forgot to ask them this past weekend at NEFR).
IF you are serious about this, I would suggest you stick to a LIMITED 2WD class FiST as a build (limited mods, NO sequentials allowed), and realize that even though the car must be registered and plated as street legal in order to compete, the requisite cage/safety equipment/etc. really renders the car NOT 'streetable'.