I will have an update on this issue soon. The control box has been engineered to have a 3d printed resin liner, that will replicate the abs grey rails of the original, which brass L stock will then be glued onto in assembky. I'm going for accuracy plus a functional build that keeps things together solidly. Stay tuned for more on this.
After a bit of negotiation with the shop, we've come to a price that should work well, and machining is underway on the prototype. When I have that in hand, I'll post pictures here and start a sign up thread in the classifieds. I'm estimating in about three weeks. I'm super pumped to see this beauty in the flesh