Sounds like you got a good deal. I bought a one-owner 83 last year for $800. Spent about 1/2 of its life in CO, rest in WV. Had about 250k on it. Had about the same amount of body rust.
Listen closely for any rattling noise from the engine at idle or rev it up to 2k or so. If you hear anything, you may want to pull the valve cover and check the timing chain guides. If they're broken, you'll need to replace them asap, as the chain will eat into the water jacket, if not repaired. Somewhat time-cosuming the 1st time you do it, put not particularly difficult or expensive. A kit from engnbldr.com is about $60.
Bob
Listen closely for any rattling noise from the engine at idle or rev it up to 2k or so. If you hear anything, you may want to pull the valve cover and check the timing chain guides. If they're broken, you'll need to replace them asap, as the chain will eat into the water jacket, if not repaired. Somewhat time-cosuming the 1st time you do it, put not particularly difficult or expensive. A kit from engnbldr.com is about $60.
Bob