@1SloRam , from my discussion with IHC, you are correct a 3/5 was not possible as the no cut would hit upper control arms.
I'm helping a buddy put a 3/5 on his ram Saturday. He is doing 3 inch crown drop springs, max Trax upper control arms, bell tech 4 in rear spring kit , cutting 1 coil on rear springs and the ihc cut brackets.
He pieced this together for about a grand. A little less expensive than ihc 3/5 kit.
His parts look solid, you don't need to use that rubber spring isolater from ihc and you use belltech springs. He is saying with stock shocks.
Overall I'm interested to see how it rides once installed.