http://www.shuttlebike.com/SHUTTLE-BIKE KIT - The Story.htm I wrote Shuttle Bike and just thought I should share the info: Its pontoons got upgraded to double-chamber pontoons (so -- God forbid! -- a puncture in the front of one doesn't lead to total leakage and collapse), and it's available until the end of this month for US$890.00, freight inclusive! Unfortunately, they seem like they only do wire transfers and PayPal.... Does this thing look like it might fit a 'bent -- say an SMGTe?? But I'd be a little concerned about weight distribution...! I'll write 'em again and see.