Temporary Paint Job

Looking for some advice here. My car is all in primer covering some complete body work, some covering the rest of the car for cosmetic reasons.

I know keeping a car in primer for log periods is not a good idea and it is about 2 or 3 years from a real paint job. Since it is a rolling restoration I am considering a temp paint job with either rattle cans or buying a cheap spray gun and some NAPA paint to seal and protect the car until that day comes.

What say you? 8)