Ten different painters have told me ten different answers. Concerning specifically the Vega nose,
(bumper and brackets removed) where the header panel and grill meet the headlight buckets on either side, these are all tight joints, no gap. If these are painted before assembly, the paint is sure to scratch during the assembly. If the paint goes on after assembly, the tight seam is certain to fill in with paint and clear. I'm a novice at autobody repair and painting which is a trade in itself. Half of the painters I have spoken with have dogged out the Nason brand which is what we are using and so far has produced acceptable results.