Front suspension ideas?

To be consistent it seems that the UCA, LCA, and TBs would be white. The K-frame would be gloss or semi-flat black. Questions to consider: Where does it end? Do you paint the steering linkage, LBJ, and backing plates white? some other color? at all?

If it were me, I would not paint the springs, especially if I plan to keep the car a while. The springs flex along their length which can crack the paint in one place and allow moisture (and rust) to collect in another.

Amen to that last paragraph especially with respect to leaf springs. Coil springs are fine. Powder is much more flexible than paint.

I would NOT recommend powder coating leaf springs. Over time, friction and flex will damage the finish to the point that there will be sloppiness between the leaves. Moreover, springs have Delrin liners in between each leaf which will not survive the heat of outgassing or powder cure; to do them properly, they should be completely disassembled with each component coated separately. New Delrin liners should be installed as well.