if you're going to do any graphics, i would go ahead and base, clear, scuff, layout your graphics. what brand of paint are you using? if you are using House of Kolor, and after you've cleared and scuffed, you can us HOK SG100 which is an intercoat clear. it is a base coat with no dye in it. do you tape outs and graphics, spray SG100 over that (it will help eliminate the tape lines, to an extent). the SG100 is NOT a final clear...it is for protecting the artwork.

any other questions, feel free to PM me