Bob, just found this cool project. I'm in!
The F2stang started as a Fox body. My Fox had urethane bushings in the rear control arms - they were deadly. On a hard corner under power, the inside wheel would lift. A 90 degree turn would instantly become a 180. It seems Ford used the rubber bushings for articulation.
I noticed you used the heim joints on the uppers, which is a fix. I would still stick with the rubber bushings if possible. Ford also had an extra set of horizontal shock absorbers in an attempt to control wheel hop.
That short wheel base should be a lot of fun.