+1 on the true track. Hold up great in straight line and work well for auto cross and other corner carving. Moser Wave track is a new one I would look at.
MM XD. lowers
MM Panhard and torque arm.
I had 10/350s up front and 9/250s out back will bilisteins. it handled well but sure MM or some of the experienced road racers will have better input. I would definitely do adjustables.
If you well up the torque boxes and install reinforcement kit they will install from the top as well as the bottom.
Cheapest handling solution. Buy a mazda miata