Craigslist Detroit Michigan has a recent listing of a real nice looking DN wood & aluminum ice boat for $2250 w/ photos.
....definately worth the drive......go for it! ...if you leave now, you could could be Winni ice-boating on Sunday......
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Also in craigslist detroit boats for sale, you will find an outboard style motor mounted on about a 12' rowboat and the outboard is designed to engage the ice....i.e. it has a mechanism which engages the ice somehat simlar to a standard propeller engaging water....what will someone think of next?
Google "ice fishing boat antique rare newbaltimore" to see photos of this crazy outboard.