I'd grab 'any' pinny thats under $1000 without thinking about it...you can always flip it on ebay if it's beyond your repair skill level etc....
It sounds like the major parts are clean & acceptable as u described, even if the cab needs some loving.
just my 20cents ;-)
MM
+1 I think this is the best way to get in to the hobby if you want to get your hands dirty and have a go at fixing them up. Only problem is that you run out of shed space very quickly ;)