I'm new to skis and looking at getting my first one. So I found a 91 sj for 1000 (asking 1200) with mods, high compression head, full coffeman exhaust, msd ignition, bored 2 over, and aftermarket ride plate, intake grate, and prop (not sure what kind though) And only 1 ride season on the mods. So my question is is this a good deal? Oh and no trailer.