Choosing our next trailer for couples travel

We've traveled all 48 lower states in the last decade in our 2005 Outback bunkhouse and the kids are about ready to go their own ways. We might take an occasional trip with them, so sleeping 6 total is nice. We want to have a full size walk around queen
ed, plus we see ourselves traveling with our best couple friends as well, so we'd like something that would well accommodate two adult couples in their early to mid 50s for sleeping. Both husbands are big men at 6 foot 5.ideas? New or used.