His price is high IMO from that description. You'd have to get exact details on the included extras (spare parts, type of hulls & quantity, type of shot & quantity, etc.). But if there are at least 4 bags of shot included (retail around here for a 25lb bag is $45) that puts a value of $180 on just shot, depending on the rest it could be a decent deal.
Parts are a problem, unless it's for common items like Primer system, shot and powder system, those parts are usually interchangable with the 366 stuff. Hornady bought Pacific out years ago, they still have some stock of parts on hand for replacements. For a manual just give Hornady a ring, they usually will send you one for free.