Go to Michaels or to hobby lobby and get estimates. You could go to the antique mall or a resale shop and look for a frame. If you find a bigger frame you can get a " matte" board and cut it to size w/ razor knife. Its also called a framing board. That should save some money. Use double stick tape or elmers white glue
Buy an oversized frame and then trim it to fit
I'm sorry. I have no idea. Not my area of expertise. Sorry. Hopefully someone else is able to help!
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