There is another company out there building Trik conversions like the one posted earlier, its called a Voyager. And they have a model for the Vn900 Classic LT.
MTC Voyager - Motorcycle Conversion Kit, Motorcycle Trike Conversion, Motorcycle Trike Kit, Trike Kit, Trike Conversion Kit
I might be interested in the future, but the VN900 already has very little road clearence as it is , and either unit would reduce that even further.