Yes, Nick makes ones, but when I bought the gun and mantle from him, he didnt tell me he makes the turret gun mount behind the mantle. He sent me one in my recent order for another project last week, but I had already chopped up the brackets on the rear of the mantle that are needed to mount it through the turret gun mount he sent me. So it was basically too late unless i ordered a new mantle and pivot blocks. I just kept working on it as you see.
One more reason I keep after him to make a website or at least a catalog so you know what he makes. Had I known he made it, i would have bought it and saved myslef lots of work and headache.