Your particular area has a lot to do with value, around here, you can't touch anything aluminum for less than $1,500 or so even in really rough shape.
If that boat were closer it would already be in my yard. I've often picked up boats like that and flipped them for double without doing a thing to them other than maybe ditching the motor and trailer. I've sold bare hulls like that for more than he's asking for a complete boat. Figure that there's a substantial scrap value as well to that boat in just aluminum, even at today's prices. I junked a wrecked Alumacraft in a similar configuration a month ago that had been sitting sunk for decades, I basically shook out the rotted wood and hauled it for scrap, the hull alone brought $512 in scrap.
A painted tandem trailer in rolling condition, which I suppose that one is in will fetch about $500 or so here and any outboard that't not stuck will bring $250 on CL, or more if parted out bit by bit.
The windshields are just plexiglass, and it appears both of the originals are there to make patterns from, so its more time and labor than cost. The rest is just plywood and paint.
The same with the trailer, a set of new tires, service the bearings and some modern lights and its good to go. I could see a boat like that sitting for sale for a long time if it were an I/O but the outboard models are in greater demand. (The clunker I scrapped was an I/O model that someone has set adrift to sink).
I had a rather rought Starchief here in the spring that needed all new wood, new paint, and some rivets replaced. I sold it minus the trailer and motor for $1750, it was listed for less than a day when it sold to a guy who drove over three hours to get it.
I've always thought that if I found a decent older Starchief like that I'd remove the top windshield and rear wall and move the helm up to the f
