never an RV but there are lots of variables in painting an RV. How big is the RV (Sq Ft) What quality paint? Clear coat finish? I was recently told by a local painter clear coat can run $150 to close to $1000 a gallon. The stuff for a grand is self healing and used on show cars? His words. I suspect any paint shop can do the work and how long would depend on how booked the shop is. Jayco is paying for refinish on front caps on some units, and that seems to run about 2k.
2000 F250SD SRW 7.3 Long Bed Extended Cab Air Bags
2014 Eagle 30.5BHLT
2007 Layton 245LF (sold)
196? Shasta 16ft
Learn from others mistakes, you'll never live long enough to make them all yourself.