Dayum, them sure is some purdy towers.
I believe I would ask him what he would charge to paint it for me and start saving for it. Are you planning on letting him prime it for you? If so, I think it might be OK. I would talk to him and see what he says about it. Definetely, I wouldn't even think about using rattle cans to do it. If you do, it will all have to come back off when painted.
Good luck.