So the final version of the 20mm cannon armed V150 is up at Shapeways.
http://www.shapeways.com/model/13932...s&materialId=6
"Nomuse", our 3D artist, is willing to make the "no turret or top deck" version if someone wants to scratchbuild their own V150 -- you can contact him through Shapeways.
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Michael B.