1) Motor: http://www.amazon.com/gp/product/B009N81HES?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00.
2) Coaxial Power Jack: Radio Shack part number 274-1583.
3) 3.0 Vdc Power Supply: Radio Shack part number 273-315 with the "N" style plug 273-345, you get one free with the power supply.