Go to Sew-Classic {
http://www.shop.sew-classic.com/ } go to the cord section and order the 18-2 SPT-2 cord for your controller and power cord. For the light you can use the 18-2 SPT-1 cord.
This cord is not exactly like the OEM but it is the correct wire size and will work great. It's what I use.
That is the closest I've found to the original cord.
Joe