Wanted: Henry Homesteader Non 3DP Pistol grip adaptor

Hello, I’m looking to get a non 3D printed pistol grip adaptor for my Henry homesteader. This can be through an injection style polymer, wood, or even some cnc creation. 

I currently have a 3DP adaptor and it fits perfect, but loosens frequently in use. If I over tighten the screws on it the plastic snaps, which has happened before making me need to order a replacement 

I have the 3D adaptor and would be willing to ship it out or send dimensions to copy, will pay EMT and shipping on me. Thanks !