I haven't done much in the garage this past week, but I have fiddled with tanks a bit. The Yamaha tank fit well, but I just wanted something different. I have two Honda S90 tanks as spares, and I really like how it fits. It is very snug, sitting much lower, which is the look I'm going for. I also test fit the Yamaha GT80 engine in the chassis, which will be powering this beast. A nice buzzy two-stroke with a fat expansion chamber.