In my experience I would prefer to completely build the vehicle, then disassemble and paint. It will all go back together quicker and smoother. Plus you dont worry about messing up the paint trying to figure things out that could have been solved before paint.
__________________
Brian Miller
-1972 Nova
-1968 Camaro
-1967 C-10 step side 4x4
-2000 Dodge Dakota
it'll buff out........ 
|