I will be ordering a pair of reproduction 37 tail lights and conduit retainers but the conduit I have seen looks to be universal that might not hook into the retainers so anyone know if any original type conduit is being made.

I have never seen any of the canvas type sleeves. All I ever saw was that plastic tube stuff.

In Australia we have Jaycar electronics. They sell a heat shrink wire cover that looks very similar to the cloth cover that was used originally. Comes in various widths and using a heat gun shrinks to half its size. Much better than that black plastic stuff. Dont know if Jaycar is an international company otherwise try an electronics firm that handles ordinary heat shrink products.

Jeff,
Jim Carter and The Filling Station should have he original type metal flexible conduit with crimped ferrule ends. They will fit the clips that you buy. Your horn wires should also use a similar conduit to protect them from the heat where it passes between the intake and exhaust manifolds.
I know this because I make the clips and conduits for them. Good luck.

Mike