If you don't know the knowhow and skillset to build a rack, and wire it with heat, don't do it. You will be setting yourself up for a fire hazard. There are many manufacturers out there that can sent you a pre-assembled rack for marginally more than you would spend on supplies yourself...minus the increased hazard. I have just ordered a rack from Beeger boxes, but Boaphile, Animal plastics and RBI all make fine racks. Just know that they take a significant amount of time to ship as these are small mom and pop companies with usually only one or two people constructing the racks. Do some research and call them for questions.