I have two antique carriage doors that i purchased from a home in Philadelphia. They are 100 years old. Once I put the doors in the rough opening i found that they are too narrow. I need to disassemble the doors and make the sides wider. The doors have 8 pains of glass in two rows per door. I have searched high and low to find out how to take the sides off, make new ones and then reassemble the doors. But to no avail. Please help.