B or E body Tubular LCA on A body

I do have the adjustable strut rods from RMS as well as UCA, but I agree with you. The rims looks fantastic but prefer the front about another 1/2-3/4 lower. One guy told just to mill the rim 2mm and should be ok..... but I am not in agreement with that option.

Honestly I would do that before I messed with the suspension. A few mm's off the wheel mounting surface shouldn't effect the overall strength of the wheel. Those are cast rims though, so without seeing them I couldn't say for sure. But I would bet the mounting surface isn't the thinnest part of those wheels, and a few mm's wouldn't change much. Might be worth showing them to a machinist. A good machinist should be able to tell you if it's a bad idea or not.