I got hooked on scooters after getting my first one just shy of a year ago but I want to make something that isn't available. A scooter engined all purpose cycle with recumbent seating position. Think a tubular version of those hyper-miler scooters that get 150+ mpg. The requirements for the engine: Cruise at 60 to 65mph Low maintenance(3,000 mile oil change intervals, valve adjustments twice as long) Can be carbed or FI. Has a 12" or bigger rear wheel that could handle 5" of travel, possibly more depending on the shock length. Engine can't have any adverse affects from being at more of an angle to the ground than normal(problems with oil pick up or transmission gears not being lubed by oil bath. Basically able to handle some light off road work. Thoughts?