I would try and stick some sort of perch in the coop, even if it's barely off the floor. I couldn't tell from the pictures but if there are more than 2 nesting boxes you could make some more room by getting rid of extras. Two should be plenty. Lucikly you're not trying to get backdoorchicken to roost in your coop so I wouldn't worry about repainting it. If you like it, keep it!