Greetings all, I have purchased a used Defiance Master's Choice stand alone woodstove. At some point, PO replaced the door glass with plate steel. I have purchased replacement glass for the doors and gasket material. But, they modified the doors by drilling a hole and bolting the plate steel in. So the original method of holding the glass in is not there. There are no clips or threaded holes. If someone has a defiance Master's Choice and can explain what was used, that would be helpful. Or I will need to drill, tap and use washers. Thanks.