If you email me the schematics and BOMs for the first two and I should be able to turn them for you over the next week. I've got some open time and could use the therapy that such a project represents.
How about this one? I pulled the schema and BOM from the DIY Sound Group forum. It's for Bill Waslo's Celestion buyout build. I bought some of those drivers. Bill did a very nice job on this one! Maybe I'll build a pair. The PCB measures 7.25 inches by 5 inches. It's single sided with silk screen on the top side for parts placement and should be cheap enough to produce. The large holes on the board are for tie wraps to hold down the heavy parts. The PCB is setup for sta-Kon spade connectors but wire could be soldered using the thru holes as well.
Edited by Carl_Huff - 11/12/13 at 3:57pm