I want to go to coil overs in the future. I would stick with RK, i am sure they could help come up with a spring package that would be more complementary to your setup than most other companies. I believe and Ross correct if I am wrong, hasn't RK done some hemi swap builds before, maybe not for a DD.

I assume cherry bomb is a rubicon, is the Dana 44 heavy enough to handle the weight of the engine?