OK, I figured I would start a real build thread and will be adding posts as things progress.
I bought a 2000 Ninja 250 and stripped it down as needed for the construction.
The motor I bought is a "SepEx" which is actually what people have been calling a shunt wound DC motor for many years. This one is a D&D SepEx that is capable of 17HP at 48 VDC. US made.
The controller I bought is an Alltrax DCX 600 which working in conjunction with the shunt motor will give me regeneration. US made. This controller is also programmable with my laptop via a USB cable and RS232 adaptor and the software is available for free on their website. Be aware that there are EV parts companies out there that wanted to sell me a disk and a cable adaptor for $300. I thought that smelled a little bit si I didn't buy from them.
I bought from Electric Motorsports at www.electricmotorsports.com
I haven't finalised my battery selection yet but will do so soon. Same with the charging system.
Pictures coming soon.