I'm having a hard time finding a bridge for this Stewart. It's set up with 1 7/8 X 7/16" bridge, skin head, nylon strings. The action is way too low. It looks like I'll need 1/2" or 17/32" . I understand poplar is best for this set up. Would this be a custom made bridge ? Can I get ahold of a blank and file/sand it to size?