Welcome to the forum. You will find a lot of helpful info and friendly folks here.
For a used RV, you can take a look at the Thor Owner Classifieds. I have recently seen a couple for sale on the forum.
Also, read, read and read for some helpful tips on buying and maintaining an RV on the forum. It is all here, it just takes some time to go thru it. If you have any specific questions, there is someone here with the answers. And if you don't get an answer, you will get an experienced opinion.
Best wishes for your search.
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