G'day Speedster,
Great projects!
These guys run a scooter motor, 50cc on Nitro, in a glass tank with a bit of style to it.
Numerous build photos on the site, and some nifty ideas. Like using the frame to hold compressed air for chute deployment.
http://www.geocities.com/buddfab/buddfab3
Regs,
PJQ
Velocity Science Laboratories