1987 Trailmanor 22

We are going to look at a 1987 Trail Manor, needs battery ,probably
tires,and fridge doesnt work. Has some wood rot in a wall. The ac
works and all water functions and heat work as well as floor structure
and subframe is good. Is $2000 a good buy , I figure we would have
$3200 in it when finished and it would be perfect. Also the 1987 22,
is the 22 the length open or closed. Anything else to look for? Bill