Yep that's pretty steep but that engine looks so, so cool. I'm going to try and find a way to justify it one of these days.

I have a little 30cc gas 4-stroke that's actually intended for a string trimmer. It would still be on the heavy side even after a lot of work to lighten it so I've given up on converting it to RC but the thing runs so well. It starts right up, idles forever with no sign of quitting and throttle response is nearly instant. That makes me think that something like the new Saito could work very well.