Mine came from "TK6810" on rebel legion forums. There may still be a listing in the classifieds about them on RL. If not you can try to msg him there.
It is very good quality, fit and accuracy, highly recommend. Center box is open and removable. (I added these center switch panels for my lights, box just comes with solid ones.)
....and hose is the lightweight one from the classifieds run over there too.