As far as the camper goes, it is made from fiberglass and polyester resin, same as boats that live in salt water 24/7 their entire lives. I would pay attention to the jacks and jack mountings though. What year Bigfoot? older ones have steel jack mounts which can and do rust. Older ones also used galvanized screws to hold the jack mounts on, and to hold the two halves of the shell together (under the vinyl trim strip). These can eventually rust away to nothing, and will be accelerated by salt. Newer ones use SS screws. On my older Bigfoot, I replaced all the galvanized screws with SS, the cost is quite low if you buy them from an industrial supplier (like McMaster-Carr), and it only takes an afternoon.