****EDIT**** Looks like I found a suitable alternative, but if you happen to have this part, please let me know.

Looking through the major suppliers of the slimline 4x10 10-ohm dash speakers, and they are all out of stock. I'd rather not take my own (or another) speaker to be reconed based on my time frame of reconstruction for this car. Does anyone have one of these speakers they would care to sell? Note this is different from the Cutlass speakers with the rectangle shape frame.

Photo for reference: