Looking at 1971 Jayco Jayking- advice needed

So I get the feeling I should look at the roof? lol...and be prepared to replace a lot of things. I don't think we really need all that stuff to work, like appliances, etc. We really are just going to put it on a friend's lot at Lake Carlyle. Crickydog you probably know where that is...they have trailers there, that are newer and have better amenities; we generally grill anyway. But, we do want it to be dry. We realy don't care about how well anything else works once we park it. In fact, my girlfriend is now telling me it's really going to be an overflow place to sleep for when we have all the kids, etc. Thanks for the advice.

My girlfriend is a Carbondale grad and so is my youngest brother. She got her BS and law degree, mid to late 90s- the golden years of partying at C'dale!