Hotchkis rear leafs or rms 4 link? Any thoughts?

I would like to do some autocross but it won't be professional.Just for fun. Just trying to justify the extra cash for the 4 link setup. Front is set up with firm feel 1" torsion bars and tubular upper control arms, 1.25" sway bar, kybs and running 17x8 rims and tires.

Looking at what your running I would say that you should go with the Hotchkis rear springs and spend the money you saved from the 4 link on better shocks for the car than the kyb's.