Griffo.............
Be kind to Deno! He can save a sh1tload on the whole project by going down the experimental route, can't he?
I still reckon the P76 is the way to go, using old 20 gallon oil drums welded together as floats. A
LOT LOT cheaper than the $90K that you're suggesting!
Getting it offf the surface of the earth's another consideration though.