Couldn't come up with a guestimate but it seems like he has narrowed the potential market he is trying to sell to. Do a lot of people want a "sportfish" design with no "sportfish" equipment? If I were interested in that boat I guess I would be quantifying the amount of money that would still need to be put in to the boat to fit my needs as well as what the boat was originally designed for. Pretty boat for sure though and great job on the resto.
I used to see alot of defished sportfishers on the great lakes. Old Vikes, old Hats and old Egg Harbors were pretty common. Most were pretty nice but used for cruising, not for fishing. Of course there really isnt alot of need for most sport fishing gear on the big lakes. The outriggers are nice for Walleyes and Lakers, but a fighting chair is really overkill for perch and smallies.