What Do You Need To Paint A Horse Trailer?
Take it to small, independent shop or a place like Maaco that advertises cheap paint jobs. Should be $400-$500 and will last a good 5+ year. Paying someone to put in bedliner should be around the same so ~$1000 to spruce up your trailer. If you feel adventerous you can buy a compressor, paint gun and paint.
An aluminum trailer can certainly be repainted. In fact, the preparation is much less than that involved in painting a steel trailer. Automotive urethane paints can be used, which are colour fast and UV resistant.
How to Paint an Aluminum Trailer
How To Paint Your RV Exterior Fiberglass?
Assuming there is only two or three layers of paint a shop with a decent blaster should be able to finish in two hours, so $100 to $150 is reasonable.
That requires no painting. If you decide you want to paint the travel trailer and expect the coating to last you need to use an automotive coating. It you choose to paint the surface then you need a high grade exterior acrylic enamel that can be brushed or sprayed.
A coat of paint is only as good as the surface it’s on.
Depending on the type of wall or siding your mobile home’s exterior is made of you will need to prep it differently. If you prepare the exterior improperly, not only will the painting process harder, but you might be very disappointed with the result.