jpettit-
No experience with Trinton Marine, but I thought I'd comment on the rest of your post.
Yes, the boat would, in general, be more salable with a galley, but there are some folks who simply want a fishing machine, and who would prefer the extra space for seating, storage, or whatever. We do have more than a few folks here that have boats configured like yours, and they do sell when they become available.
So when you look into the cost of having the additions made, consider how much they would cost versus how much they would add to the retail value of the boat.
The hard part in figuring out whether you would recoup your money is determining that difference in value.
I'm having a hard time guessing what that might be, because I can see where the lack of a galley makes no difference and is actually a plus to one buyer, but is a total turn-off to another.
Without the galley, is it worth $500 less? $1000 Less? $2000 less? Or even no less or even more to the right buyer?
I'm not trying to confuse you here, but just playing Devil's Advocate as I'm thinking it through myself.
If you want the galley for yourself and plan on keeping the boat for a while, by all means, do it, you'll likely get your money back, or come close to it, and enjoy it more in the meantime.
But if you're doing it only to sell the boat, I'd encourage you to try to sell it as is first, as you're likely to find someone who wants it as is, especially with the large audience of prospective buyers on this site. You can always add the galley if you find it won't sell easily.
Finally, considering all the above, and especially reconsidering the cost of the individual components, planning, and cabinet work, I wouldn't be surprised at all if the cost of having this galley conversion done professionally could easily exceed the gain/difference in salable value.
Let's see what other think! (?)
Joe.:teeth :thup