Anybody done the kit conversions?
Looks like you can get a 26" tire with electric hub, 1000W, 30 ish MPH, for somewhere between 200 and 400 hundred bucks.
The cheap kits use lead acid batteries, you would want something better, but they are awfully cheap.
Maybe too cheap?
Typical:
26" New E Bike 48V 1000W Electric Motor Hub Bicycle Rear Wheel Conversion Kit | eBay