Painting an RV
The wife and I bought an older motor home ( 1979 Foretravel) and we were trying to decide whar scheme and how we were going to repaint it so it would appear a little newer. The existing paint job was in good condition. After some thought, the painting to look newer would be like me dying my hair to look a little younger but I'd still have the wrinkles. So decided we didn't really care about looking newer what we had had character. All we are going to do in the spring is to replace the stripping and do a good wax job.
From my experience, when I was partnered in a paint and body shop, to repaint and use newer stripping on a 35-40 foot motor home, depending on what specification pait and color scheme was used, we billed on an average of 2,900 to 5,500 dollars.
As to the painting in Mexico, they doo good work but you have to be very attentative as they like a lot of other shops take any short cuts they can. If you go this route you want to make sure they use a name brand paind and with any shop the uses mixed paint make sure you have them mix a couple quarts extra for you to keep in case you have a need to touch up.
So much for my two bits.