Welcome Tcams_Zonie to the forum, always good to have another Tucsonan on the board. We have a very large group of AZ members here.
I sent ya a PM but you can disregard, sorry about that, it's all explained in the PM.
I rode for years with only rear coaster brakes, but it is a good ideal to have at least front as well.
I believe the electra has plenty of room, but you can get the frame dimensions in this thread http://motorbicycling.com/f3/what-ki...mmend-510.html
Or you can print out this template http://www.gasbikeshop.com/downloads...e-template.jpg
I would recommend Spooky Tooth Cycles - Motorized Bicycles: Gas Powered and Electric Bikes - Home
or bicycle engine kit, bike engine, bicycle engine, bicycle motor