I'm concerned that a custom order will take a while, even if I want something very simple. Right now my basement has no exterior door, so I've boarded up the door in my kitchen that leads down to the basement. The basement is unfinished and empty, but I still want to get a door on it ASAP.

You could always mount the cabinet on the surface. Just make sure that the cabinet is larger than the opening. Or if it is smaller, frame the gap with a wooden frame.

I answered you again lisa_a in the remodeling forum.

I just ordered from a company that will make you any size custom frame that you want - www.theframeguys.us. I think they are also on etsy under the seller name Rusty Roof. I have also ordered custom size frames from framesbymail in the past but their styles were more limited....theframeguys had the black narrow bamboo frame molding that I had been running all over the place trying to find. At any rate, I called them to order and they are the nicest family-run business. There was an issue with my order originally (a mix up in how I thought I was giving them the measurements and what she thought I was giving her) and they took total responsibility and replaced the frames. The cost for 2 frames was less than what I would have paid to have 1 custom framed at AC Moore and AC Moore didn't have the color I wanted. I'd definitely recommend them. Just be sure you tell them exactly how you want the art to fit in the frame - there is an overlap where the front of the frame molding covers the glass and some frames want you to take that into account when measuring and some don't.