Got a set on ebay under dynamo. Also got an extra Dynamo by it's self. Really by it's self, mounting hardware seems to be unavailable, unless you buy the package deal. Don't think I can manufacture anything at home.
I got these on Ali express, they’re pretty good, the taillight is not chrome, which is fine for me I plan on painting it black. I have rewired them with 8mm led in the taillights and a large circular COB led in the headlight because the bulbs in them are garbage.