That machine has an unusual narrow (to me) 4-in-one digging bucket. It's a track loader, not a bulldozer. The undercarriage (expensive to fix) looks pretty good. Can't tell about other mechanical stuff from photographs.
My advice is to advertise in Machinery Trader or Iron Search, where you get a more knowledgeable looker. Craigslist is kind of for bottom feeders for that kind of machinery, IMO. It might be worth waiting for a good offer, rather than jumping on an early one.
Jim