I like using primer gray. In this pic I don’t have the sides or top on the VR, but you can see the primer gray on the rotating cylinder at the bottom to get an idea of wgg hi at it looks like.
(One extra tip - be careful soaking aluminum in some chemicals. I let a set of those sit in simple green and I forgot about them. About 3 or 4 days later they were paper thin Swiss cheese - garbage).
-Steve B. (WTB: 48" Flying A button, 48" black/org Phillips 66, White Star, and Chevrolet Signs. Also looking for a Wayne 866. Send a PM. Thanks.)