Donor Bike - Mongoose Domain Dual Suspension. $60 from Amazon.com during Christmas sale.
http://www.amazon.com/Mongoose-Domain-Dual-Suspension-Mountain-Bike/dp/B0007ZF5JO/ref=pd_sxp_f_pt/102-5967606-7300124Complete (the stickers had to go)
Battery Pack - Sears Craftsman Tool Bag (already had)
36V SLA AGM -$85
Rear Rack - Old Man Mountain Red Rock (Only good one I could find that would fit a bike with rear suspension.)
http://www.oldmanmountain.com/rear_rack_page.htm - $80
If you would like one of these, call them instead of ordering online, he gave me 10% off.
It is rated for 60 lbs. and weighs 1.3 lbs.
New seat because I cannot stand anything between my legs - $24.99
Here is my dash with the speedometer, LED headlight, and battery meter.
I chose not to install the cutout brakes because after riding for a few days, they were just in the way and useless. I unplugged them and just let off the throttle if I need the motor to stop. This may not be the safest thing, but oh well.
Leave some comments and any improvement ideas. If you want to know how I hid the wires, I used a short section of the rubber used to cover power cords on the floor with a pice of foam rubber on the back.