That's sticker shock if I've ever seen it. Maybe 100 bucks in material and a used engine from Craigslist I could make that for less than a third the price
YES that is the perfect description for it One could even theoretically put one on either side, effectively doubling the power; while at the same time, adding stability and traction
I just watch the videos. Not quite like that that's just a trike that someone put a motor on; the other wheels wouldn't be so far away from the back but but almost directly behind it