Rob, those are the HEAVIEST 12 inch boats you could ever find. They weigh as much as a 12 foot boat.
BTW, they are hit and miss to find. Cult following, including myself. I've always wanted to get one of my own, loved my Dad's 14' Hi Laker which unfortunately burned up with the Pt Defiance boathouse years ago.
I dont think it is going away any time soon. I know he wants to sell it but is just too lazy to put up the for sale sign on it. Next time your around home shoot me a pm and you can check it out if you would like