Welcome to this FGRV clan! From experience, effective searches usually involve visiting the classified section of a website. Here, you'll find a button in the "Notice" box below the header at the top. As you stated you were looking for an Independence, I suggest you also visit the classified sections of Casita
Club, and Casita
As a matter of "best practices", one usually indicates in both what state and city one is located, and any special interests one has in finding in a trailer. That means folks who haven't posted in the classified sections but who might consider selling know of your interest and proximity. That can result in new posts (though once interest in selling is stated, most discussions are handled by PM, and then perhaps by phone).
Anyway....good luck in your search!