Hotchkis rear leafs or rms 4 link? Any thoughts?

I would say properly set up you would like the 4 link. However, tailpipes can be tricky as the TTIs won't fit. Also, you really need to invest in good shocks on that setup. I have zero confidence in the Varishock pieces for street usage. If you are going to fab something, go with a 3 link. Typically, leafs are 39lbs each.