I could not successfully get through the details of the text in the written offer with the seller. Our final discussion went poorly over a few sentences the seller wanted me to include. Basically making me fully liable for anything that could happen to the boat during the haul out & sea trial. The haul out company would have their own insurance /no issues there but the boat on the water is another story. In my opinion the seller should have insurance for the sea trial. I wasn't one thing that caused this to fail, however our conversation was the straw that broke the camels back. The accumulation of oddities along the way have me not feeling good about any of it. Feeling like your being played, when your ready do drop this kind of money, or anytime really, is not a way to start new (to me) boat ownership. He ultimately did agree but I had already I rescinded my offer. I will keep looking for my unicorn.
I don't know the entirety of the story, or all of the details involved, that being said I think I'm going to side with the seller on this one. You already mentioned the hauling of the boat to and from the water, of which the company would be responsible for that in the event of an issue, and their insurance would take care of everything. That's something that is understandable in that neither you, nor the seller, really have any control over and the seller shouldn't be responsible if the hauling company dropped the boat on the ground for example. If you personally are driving the boat on the sea trial run and hit the dock, run aground or run into something else, you should be the one liable for the damages and costs to repair said damages. Same goes for when you purchase the boat and all monies have exchanged hands and the deal has had the final handshake. It's your boat at that point, of which you should have insurance on it as well as hopefully a Sea Tow membership or similar company in the event that you break down. Every time I've ever sold something of a moderate price like a car or a boat, etc... I've always put similar verbiage in the bill of sale where the buyer is fully responsible for the item after the sale has occurred. The item is being sold as is, where is, unless some other arrangement has already been made, and with no return or warranty or anything else implied that the seller is responsible for. It's solely the responsibility of the buyer at that point, especially as mentioned above, if all monies and everything else have been signed and agreed on. I say this for multiple reasons, of which the main one would be that people aren't paying attention or don't always know what they're doing. If you as the buyer bought the boat, ran aground on the way back to your home port, that wouldn't be the fault of the seller. If he doesn't put that language into the contract, he would be liable for your negligence. I give a buyer as accurate of information as possible about the condition of the boat, maintenance history and so forth, but there is always a possibility that something could happen right after purchasing. I honestly wouldn't let the boat go for those reasons and from what you've said, I think the seller has been very accommodating and/or at least reasonable, especially since you said he ultimately agreed with you in the long run. The idea of a unicorn boat, car or any other toy imo is just silly in that you're likely going to talk yourself out of the situation, and usually for little to no reason, because you're going to look for something that is "perfect" to you, that in all likelihood you might not ever find. That's just time, money and emotions wasted imo. But hey, it's your money and your decision, though you are asking for the opinions of an online forum, so those are my opinions on the matter.