I'll order some pcb:s after new year.
It's possible stack two flat pcb's on the 68k socket.
In fact the V188 boards are used with an extra socket underneath the board, because the kickstart rom in a500 would come in contact with the ide board if not.
I'll make a narrower cfide-board, because of the kickstart rom. I'll also make a 16 MB (or 8MB) pcb, and maybe later an integrated memory and cf/ide adapter.
16 MB board will have some unused memory capacity. It's that much, because it's easier to interface two 8-bit drams than one 8-bit (8Mx8) dram chip to a 16-bit bus. (I've bought a large amount of 3.3V 8Mx8 chips from an auction on ebay.)