Stepped trailing arms

[fixit-p]

I've searched all over and cant find any threads of anyone doing any trailing arms with a 2" step I've seen the adjustable, notched, boxed, blocked and the stock copies. So here I go... I've reverse engineered a set of stock arms and built in a 2" step and pinion correction for a 3" drop spring total 5" drop the miter cuts are all going to be beveled and welded with 7 ga. backer strips and doubler plates on both sides also 7 ga. One problem I'm running into is the mounting hole for the coil spring is rather close to the step and since my c20 has leaf springs I have no idea of the springs O.D. I'm planning on moving the front pivot 1" father since these wheels aren't centered any way and it would help with my spring clearance. Any feedback would be greatly appreciated.