Actually you'll get a nicer job spraying it in pieces since you won't have to tape off the jambs-no tape lines as long as you rig a way to hold the parts suspended.As long as you're not spraying high metalics,candies and pearls there's no problem.If you get the color in qt cans get a gallon can and 'box' them together to eliminate the chance of a slight variation between the qts if they had to be mixed.I will suggest this though to make it easier.Have the door jambs basically ready to paint and preferably have the hinges in color or cleared and scuffed.Then seal and blow some color where the hinges mount and mount and align the doors when it dries.This works best if the doors are gutted but they don't have to be as long as they're taped up and the latch,striker and weatherstrips are out.As you paint the shell pull the door open to blow the jambs and you can reach the hinges and the front of the door jamb and the post with the door shut since the fenders are off.You will have to make up a stop so the door doesn't close all the way and touch the body jamb,but when you're done there are no tape lines in the jambs and no scratches or chips trying to get those damn doors back on and adjusted.Where you do have to put panels on cover the edges with about 3 layers of tape to get them on without chipping the paint,then remove the tape and set up you gaps and tighten it down.When you're done just brush touch the fastners where the socket knocked off the paint.
You can sandblast metal but it's not really good to for stripping because it heats and swells the metal and it cools so fast it locks in the high position except for places that are glued to braces,like if you found some spider rust on the hood under the paint and blasted it you'd end up with a raised area there and have to shrink it or melt the high out with mud-neither are much fun on top surfaces.Stripping paint this way is really hard to work evenly to control the heat.The worst case I saw and had to deal with was a 32 5 window the owner insisted on having blasted by this guy that knew what he was doing.Fine,it's your $.When he was done we had to throw away the louvered side panels for the hood and warped the p!ss out of the rest of the car,and this was good thick steel unlike the 60's on.Luckily he pulled the car after I spent a week and a 4x8 sheet of steel handmaking and welding in patches.You want to have fun try making the 'bead' that runs around the body in the rear lower corners where 3 of them meet and it's all compound curves
I thought it was cool though since the guy he took it to really commended me on the metalwork and 2 years later the car still wasn't painted.Haha,what a Richard Cranium.
Anyway,she sounds like it'll be a great ride when you're done and something to be proud of.If the bike came out great so will this,it's just bigger.Ask away if you need help