Hello Nara,
We are in the same situation, we have a 1992 Newell which we have totally redone the interior on but have yet to address the exterior for this reason. We have weighed both options of wrapping or painting and it appears that the wrapping option may be a price saving option it comes with it's own challenges and disadvantages. The wrapping typically is a shorter term 3-5 option depending of course on use and duration in the sun. There is also a fairly high price tag with wrapping once you include a little prep, graphics design, material costs and of course the labor to install we were approaching $8K-10K. The other option of paint has its' clear advantages like durability and longevity but from what we are seeing you can also end up in the $14K-$20K ballpark to fully and correctly strip, mask, prep, design, paint, clear and reassemble a large custom coach. We have a Newll repaint kitty jar, it's a really big jar, but we have opted for the paint method and are looking at 18-24 months until we can outlay that cost for a shiny new updated coach. There's always the option of driving down to Mexico where they paint your coach outside using basic airbrush techniques for $3K-$5K but we didn't feel real fuzzy with that option either!