I'm wondering why you need a bolt-on turbo kit when there has been so much development put into the supercharger kit? You aren't going to find a turbo kit design specifically for the VX, first of all. So, anywhere you look, you'll probably have to get as close as possible, then mod it... or just start from a turbo and have someone design the system around it and the VX.

You say you want a "system" that fits the VX, and you want it fast because you have an idea or "design"? Good luck!