Could you do it, yes. The top two chips are 74HC series chips (Depends on the specific gates in the chip, I cant see the numbers after 74HC), the third on the bottom, I do not know.., it will not show up on zoom.
Buy one, trace the board, then once Steve releases the TF534, you could add it via Eagle. Yeah ! You have the 68000 socket already, add the 3 74HC series, and 2 headers and bobs your uncle. How you route it, thats your problem
I have now learned enough through Steve's videos to add something like that on to the schematic page of Eagle..., haven't learned enough about routing yet though. (Hence my comment on his latest videos about adding a 68882 to a 68000 socket)
.... Yes according to Motorola, 68882 will happily reside on a 16bit bus, you need a bit of Address decoding, and Chip Select.. but it is doable.
http://amiga.resource.cx/photos/phot...res=hi&lang=en
There you go, all 3 are 74HC series)