Sure.
For bunks price ranges from about $350-400 depending on how long bunks are and if you choose stainless staples.
For painting. Hard to say. If heavily rusted but salvageable... meaning no welding required.... 800-1000.
if light surface rust, price come down. Size of trailer affects price.
If welding is needed, say to replace a cross member, looking at 250-350 in addition to paint work.
So....1400-1750 depending on What's needed and materials used. If replacing bunks, welding and painting that is....
Price varies on work needed.