Tanman,
When you get into painting the cases on the engine, you can easily strip the paint with products like Aircraft Stripper and such. If you have access to a soda blaster, I found that the factory clear coat came off pretty easily. If you use glass bead in a Blasting Cabinet, make quadruple sure that you flush all the glass beads left over. If they get into the oil galleys, you will have serious problems. The glass beads get everywhere.
As always, when painting your engine, it is all about prep, and prep and yes, even more prep! make sure the cases are totally free of grease and dirt. I used VHT high temp on my engine. Painstakingly following the directions, it made a very nice finish.
Anyway, you have a very special build going on here. We are all looking forward to seeing your progress.
Gersh