Race weekend is done, and I'm not traveling for work for a couple weeks, so I'm excited to start working on the car again.
I had a problem where the rear control arms wouldn't fit the frame.
After asking here, it seems that this is a standard problem using the aftermarket control arms, and the equally standard answer was grind them down. Tonight I was able to grind two of the arms, hopefully I'll get the next two tomorrow and then I'll be able to hang the rear suspension, as the axels, shocks, spindles and parking brakes are all assembled and ready to go.