to the forum. While you're waiting for Spring to finally arrive, there is lots of reading on the forum to keep you both busy and informed.
Are you looking at a custom fit cover or one off the shelf that will fit a variety of lengths?
Sunbrella is a great fabric for an RV cover but it doesn't come cheap. You can custom order this and the finished product will probably outlast almost all others.
Do a Google search for
RV Covers and you will get numerous hits as to where you can purchase them and what is out there. Adco is a common brand and it won't set you back a lot of $$$$ and is available at a variety of sources. It is probably the "cheapest" one out there.