I'm buying an airplane that needs a paint job, but is otherwise solid. It has the original paint from the 70s and its starting to peel/flake off, especially on the wings. My plan is to do a full strip and paint, but I cannot comfortably afford this immediately after purchasing the plane.

Because available hangars don't exist in my location, I will be tying the plane outside. So I am looking for a "cheap fix" that will protect the plane from corrosion until I get it painted (probably in 12-24 months). I'm thinking just sanding it down and spraying it with rattle cans in the spots where it is peeling.

What kind of paint and primer should I consider for this job? Are there any special concerns for painting the plane?
It is a Grumman AA1C, and I will not be painting any control surfaces, so it qualifies a maintenance although it is certificated.