You will need to establish a good polish first by going through the grits and either paying someone for an insane amount of billable hours or you will need to take a few weeks off from work and away from your family to polish it. After you have a good “base” it is easily maintained with Blue Magic but will still probably take 10-20 man hours per session just to keep up with it as often as you like. I had a plane once with a bare fuse and tail. It has a great base polish and I only ever used blue manic once. Giant PITA and waste of time that could have been spent flying or any other number of other more useful things. I hate even just maintaining a polished propeller, but then again I like to fly my plane, not fiddle with it.
get that bird painted.