We will never know if it works because they took the pins off the 68060.
Why would they put pins of awesomeness on 68000 and chop them off on 68060? 
Or did they just rename them?
So just do it like we did in the old Atari 800 days... I had a whopping 256K in my 800XL. Just map some I/O port into a spare address and use it for bank switching. So what if the only thing that extra ram was used for was a ramdisk.... it was still cool. ;-)