The reason they're so expensive is the material waste is massive due to the size and shape and how they need laid out on the roll of material. The good vinyl that will last more than 5-7 years is not exactly cheap to begin with. The RV manufacturers enter into a contract and the vendor runs off X amount of sets for a particular contract. Typically once those are gone they're gone, and the RV manufacturer has gone on to another vendor. You can expect they used the cheapest material available. Usually going to a graphics shop is your only option that makes sense financially, and it's not going to be cheap.
My daughter in law does it for a living and has the equipment. She has only done a couple of RV's as most people balk at the price she quotes but they're expensive to make and until you've personally tried to strip them, you don't know what a job it truly is.
Wraps present their own problems. How are they going to address the condition where the vinyl comes up to a molding that is sealed with sealant? Every one I have seen wrapped looked great from 100 yards away but like a shoemaker did it up close.
When I ordered our 17 Rockwood I tried to talk Rockwood into deleting the graphics with no success. Even after I stressed I was not after any kind of price discount.