Well I will try replying to this 1 more time , as it seems when i click " Submit Reply" it tells me I'm not Logged in. ( which I am)

Ok you can refinish all parts seperate BUT you better have alot of room to be able to squirt all the parts at once. Usually if you have all the color mixed at one time you shouldnt have problems with a color match, that is if you have alot of gun time and can spray every panel alike.
once you have your gun set dont adjust it as you are spraying color!
If its just a metallic color it shouldnt be a real big deal, as I do it all the time, with no problems, but I dont use Single stage anymore base clear only. ( I shoot single stage black as I hate cleared black as it scratches white because of the clear)

This is how expensive paint jobs are done to eliminate tape lines in door jambs, trunk jamb, fender edges, ect...........
But if you know how to back tape in your door jambs ( jambs are pre painted) and mask you can eliminate a paint edge and bolt pieces on the car, and its easier to paint.
I wouldnt reccomend trying any TRI-Stage paint job in pieces if you havent had a paint gun in your hand for any length of time!
I spot repair Tri-stage Cadillacs all day long in pieces and know what I am doing as I have had a paint gun in my hand every day for 30 years .

SprayTech