Back in 2003 We went from Michigan to Oregon in our then 1990 Georgie Boy. After looking back at that excursion I feel now ours is in better shape now then back then. With your unit being 28 years old there would be a lot of things to look at.
1- brake lines and fluid change.
2- radiator recore or replace.
3- transmission flush
4- tires
5- belts
6- carb check
7- if a GM check the front air bags
8- new plugs and wires
Since I did my trip I have done a lot to improve the running of the MH. Having the distributor rebuilt and recurved did more for it as far as power and MPG than anything else that has been done.
It's kind of a daunting checklist but there is nothing worse than being along side of a road doa.
Also at your age of MH the fuel lines are getting brittle which can be a expensive repair out in the middle of nowhere.
