Yes, its has circlips top and bottom. So the 1/2bsp would go in the side and like I said before a small hole in the base?

I am going to try replacing the ram rod as I am certain that the one it comes with wont be able to take the forces. I will try Titanium as the same diameter and if that bends I will have to get it on the lathe and makes a 12mm or 16mm one.