Cool piece! For reference I used to have a 1981 Ski Tique which was the 17’ -9” version of this with a 302. Partner and I dumped way too much money into it but it was a pretty clean ride when we sold it. I bought him out before selling and had Trail Rite build a brand new dual axle trailer for it about a year before I sold. If I remember right I got a little over 9k for it about 6 years ago and it sold pretty quick. The boat market now is bonkers now so maybe he can get more.
only thing bad with that era of boat is the wood stringers and it’s Past the point of some young kids putting a tower on it and making it a cheap wakeboard boat like the do with the late 80s models. It would most likely end up with a collector from the site I posted above. Maybe even someone on lake arrowhead or similar would like it for a talking piece to cruise around the lake. Either way cool boat!