I paint everything I can dissembled, depending on the color scheme and type of paint I'm using, but, BUT I have room to lay every thing out, so I go from one piece to the other, and paint them all at once, insuring that I apply the same amount, use the same pressure, same direction ect.ect. If you can't do it that way then do like Centerline says, jamb everything and put it back together, mask so the paint edges (masking tape lines ) are where you can't see them or you can sand and rub them out.
Normally you can buy a gallon as cheap as you can buy three quarts separately. Be real careful about applying to much clear,
as it will not cure properly and you will get some molting. If you want that much clear on it you should apply three coats, color sand it and apply three more coats. When the clear is that thick it will chip more easily ( like porcelain ) HTH
If you don't make mistakes. your not doing anything.
69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
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26 T sedan street rod