You will have loads of fun with a IV on floats, mine was an Amphib at one time, Builder who I bought from had converted to Straight floats, and gained 80 lbs of usefull load. I live on the East side of Georgian Bay and every flight is a scenic one, 746lbs empty on straight aluminum floats, Pic is at Beckwith Isl, Georgian Bay. Hope to see you there some time, Wiarton is not that far as the Crow, or the Kitfox Flies..