Don't forget before kipper2 added the IDE interface he also had a 4MB and an 8MB board that was significantly smaller. It fit quite nicely with an Indivision adapter.
Adding the IDE interface and the CF socket really made the bugger quite a bit bigger and more awkward to work with.
Adding the spacer socket works a charm and doesn't affect timing at all.
I have the 8MB kipper board for the A500 (no IDE) complete with CPU adapter. He also did two versions of an A600 RAM card too, for which I have the 4MB version.
@TheMagicM - Due to how busy kipper must be with the Vampires, you might get your CPU adapter quicker by placing a wanted ad on Amibay.