You seem to have a clear idea of what those frames should be looking like. At that size I guess that AMCI or APF may be of help to you with some of their custom made "drawing" type frames. Be prepared to pay a minimum of 6 ft/frame and wait about a month for delivery.
The way you worded your demand makes me suspect that you ment to say "8x10 inch ready-made
"antiqued" phony gold, ornate corner, inexpensive frames" and then you need to search a plethora of (ornate, bright, antiqued) plastic photo frame suppliers.
We may be able to help you out we do supply Joined frames... and we have some great antiqued finishes Check out our website or give me a call and I'll send you out some samples and a catalog. www.jjmoulding.com 845-561-6777