Well there you have itThis is purely my opinion and I'll provide my rationale.
I think 100k is a fair price for this boat.
1. The boat is really only worth the paint, the motors, and the drives being a one-off boat. The steps really don't work making the hull on its own probably not worth that much. The reverse chine is a very cool feature, but probably slows it down as well.
2. You're going to want to put a new interior in it or just pull your hair out wondering why you can't get the damn thing clean. I was quoted around 14k by a gentleman who does some interiors for skater.
3. You're going to want to go through the motors. I'd send them down to Tommy to have them gone through. Judging by all the people that have had rides on the boat, it probably needs a bit of freshening. You may want to budget about 20k??
4. The boat was never really dialed in. In my opinion you'll need to try at least a 1" spacer and different props. You'll also want to try venting the steps more to see if that helps. ~15k
When you're done, then that will put you at about 150k and you might be able to not be upside down in it.
If you compare it to Wicked Won which is for sale for $159k with some freshened big power. It is a beautiful well running boat.
I know both boats really well, the former owner of WickedWon and I kept it at the same marina and they've been side by side on many occasions.
If you were to put the two boats together "today" for the same price and ask me what one I'd buy, I'd buy WickedWon. If you were to do all the things I listed above and put the two together, I think I'd pick the Chief mostly because of the paint job and more modern looking interior.
I'm also comparing this to the guy's asking price.
That's my valuation, you can agree with it or disagree with it. It is only my opinion.