I have a Tula Armory Russian built hammer gun I picked up last month and have been planning on giving it an English style stock. The present trigger guard, made for a pistol grip, is way too short. However, it attaches in the front via a small fine threaded stud built into the trigger guard. After looking at trigger guards, and comparing the current trigger guard to one off my Pedersoli ML (which attaches in a similar manner but has a larger threaded stud) I was all set to purchase one from Dixie Gun Works for $29. I then remembered I had a trigger guard in with a bunch of parts I purhased on eBay years ago. After looking at the trigger guard, made originally for a muzzle loader, I decided that I could cut off the front tang, drill and tap a small hole in the front of the trigger guard at the base and then set a small threaded stud in place with JB Weld epoxy so that the trigger guard will attach in front just like the one currently on the gun. After I get done refinishing the new trigger guard, the drilled and taped hole with the stud epoxyed in place should be nearly invisible.
I guess what I'm trying to say is, be creative and you can have good results and save money at the same time.
Steve