haha yeahh I don't mean to make it seem like the kit is worthless, it's just what I have read from other people on the forums. I suggested the throttle just because mine broke pretty quick. Although funnily enough my engine works better than ever because I can set the idle now. Longish story... Buut you're right, it's not all that bad. A lot of it is stuff that can be upgraded over time as one sees fit.
That tensioner looks nice! Maybe you could make one like it that uses a spring instead of the long arm. Although I'm sure works great just as it is.
Lots of unique fabrications can be done which is one of the great things about these bikes