Hi. Where you are matters.
If you don't have access to a band saw or a mitre saw, a mitre box will do. Mitre boxes aren't expensive, but it won't be wide enough to cut with the stock laying flat. Getting the cut square is important. Cut the stock enough to include the thickness of a recoil pad.
"...epoxied cut broom handles to screw into..." Excellent idea. A hunk of hardwood dowel of about the same diameter will work as well. So will filling the void with epoxy bedding material.