Welcome to the Excel Forum! Not to rain on your parade (not pun intended) but I would be very cautious of buying an older rig that's been sitting outside in the weather you discribe. The Excels are wood framed coaches and require regular maintenance to protect the caulked seams. Otherwise water seeps in and does it's damage. Check for gaps on the caulked areas. On a very close inspection of the coach, I'll list a few of the key areas to check for damage below.
Front cap to roof line junction especially at each corner
All four corners where water gutters/drain spouts are
All slide openings on the body - metal and side walls meet
All slide tops for roof damage/caulk issues
All slide outside floors (when open) especially on ends for soft/rotted wood
Check all side walls on the inside for little specks (mold) and/or water damage. These usually start high on the walls. Look in the front closet up in the corners for water damage.
This is a good place to start. Getting in a hurry and failing to check this stuff could cost you 10's of thousands of dollars in major wall repairs.
Excels are great rigs, but one not properly maintained can be your biggest nightmare.
Please let us know what you find on your inspeciton. Tom
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