Ram:

Great overall paint job and don't feel bad about using Rustoleum -- I do the same. In fact, your exhaust looks fantastic -- I used Rustoleum black for mine. I'd spray it on, then dab it with an old terry cloth rag. Makes it look used and dirty, which is what I want it to look like. Plus, battle damaged and weld- and plate-repaired the way it was really done.

Here are few pics of my Rustoleum, house paint, and black powder burns applied to my 1/8 KT.

I learn as I go.

Cheers...