I'm getting ready to put oak trim around every window in a house that was never fully completed. Though I'm not new to woodworking I honestly don't have much experience installing trim. I've got roughly 20 windows to trim and below is a picture of a problem I'm going to run into right off the bat. If you look closely at the picture you will see that the drywall sticks out past the window roughly 1/4" on all 4 sides of the window. Most of the windows are like this in the picture. There are others where the drywall sticks out 1/4" on once side, an 1/8" on the bottom and is flush at the top. The windows cannot be removed and reset since brick work outside has already been done. I have all of the oak trim but I'm stumped on how to install it over an uneven edging. Any ideas or help would be helpfull.