Not so much a printing question as the things-that-connect-components question. Did you just place a great big order with Mouser, Digikey, wherever for things like pins, high-temp wire insulation, those crimp ferrules for connecting wire, etc?
I find the most valulable part of something like the e3d kit is the stuff I have no way to know how to source on my own…and it’s not like Lowes, Home Depot, or even Radio Shack stands a chance of carrying this stuff…