best way to do the fuselage portion of the masking for red paint was to cut the job in half. I bagged the tail end of the airplane up to the parasol struts so I could focus on just getting the wheel pants done without making myself crazy. Next step will be to bag the front end all the way to the front of the vertical stabilizer - then mask the tail surfaces for their paint. It'll take a bit longer but should be much easier to keep the airplane clean / prevent red overspray.
..at least - that's the theory