"If I could find a way to put in permanent headers and make them multi-use (and attractive) then I'd be on to something. That sounds like a tall order, though..."
It may be possible to through bolt some hooks through the ceiling and support them with a plate set up. Sealing the bolts is not a big deal as there are several vents, pipes and other stuff up there. Silicone the bolt threads and coat with RV roof sealer.
Love is blind. Marriage is an eye opener.