SoWhat OldDan, tell me a little more. Lowest priced IG30 I see is almost $40k and that is a 76, so I'm thinking these are worth fixing but hey, being TodBall and wanting to stay retired makes me think maybe not.
Makes a nice retirement project if you are comfortable with mechanics, carpentry, electronics, fiberglassing, etc. If the engine won't bar over I would probably pass.
I am in doing the exact same thing. Restoring an IG30. In the second year. Finally going in the water next week. I would not start a project based upon potential worth. Either you enjoy the restoration process or you enjoy boating. It is a huge amount of work and time and I don't keep track of the costs. Varnishing is a forever kind of job. Refinishing the deck will probably finish off my knees. Lying on my back with a belt sander taking off years of bottom paint is NOT enjoyable.
For example: Port transmission rusted solid. Rebuilt with all new bearing, clutches, oil pump, etc. Port engine barred over. Replaced starter, fresh water pump, all coolers and heat exchanger, raw water pump, replaced complete exhaust system, added raw water filtering, added racor fuel filtering. The hard part of the story to tell is the hours trying to remove frozen bolts to get the exhaust elbows off. The hours spent removing snapped bolts and installing heliciols
(The removal of the transmissions a second time to reindex the oil pumps the correct way)
Engine parts alone are probably north of $4000. And that's just the port engine. I'm not doing it for future economic benefit. I like to keep busy and I enjoy puzzles. Wife thinks I'm nuts.
Having the boat on the hard 5 minutes from my house makes it doable. If I had to drive for an hour I would not have done it. I have finished major mechanical systems and hull but have not started on interior. When I am done I will have a boat restored to my specifications and plan on checking the oil now and then.
(Note: When I bought my 3 decker in Boston 10 years ago I took it down to the studs. Two years later it was a brand new house. I did the whole project but brought in subs for some of it. Completely rewired, new plumbing, new heating systems (furnace installation subbed) the house was completely gutted, redesigned, and rebuilt. (Wife thought I was nuts)