Yes, we do make them (in 304 stainless) and I have some in stock.
A note on the Girtz/Superior car parts repros, they are not symetrical RH to LH. Also they used 1/4" large head rivets (about the same as a model A roadster hinge pin), the originals used 9/32 rivets, the head is a truss head and almost identical to hinge pins except for the knurling on hinge pins.