The super easy answer to this is NIRVC. They are quickly becoming the number one RV dealer and service and storage location in the country. They have dealerships in Atlanta, Dallas, Phoenix and Las Vegas and are planning on adding more in the next year or so.
They added Winnebago about the time that WBGO bought Newmar because they were such a huge Newmar dealer.
Do a search on
www.irv2.com about NIRVC and you'll see it's very highly recommended.
I have not bought from them, but they did complete a major body work job on my RV and did really great work. If there is one complaint about them is that they are so hugely popular and sold so many RVs that they can get booked up. But they try very hard to communicate their schedule and then back that up.
The owner of NIRVC posts on irv2.com and is known to intervene in any issue that arises.