Read the name of this thread's topic.
This started out as a discussion to replace the very difficult to find, legitimate, best mask-set, full-featured and fastest 68060 chips from Motorola/Freescale, to put into 68060 sockets such as the socket found on some Amiga accelerators and on MikeJ's daughtercard for FPGA-Replay system.
I understand the thread topic, but I think it's a flawed idea with a simple fix. The 060 bus is more trouble than it is worth. It's not the common denominator, it's an aberration.
Even 040 bus would be a better choice than 060. Good 040 cards are really common and A3640's are like roaches.
It would be easier to make an 030 bus expansion board for the FPGA Replay and get more use out of the CPU work than just the people who are holding the remaining 060 cards for ransom.
Other things, such as the 3000/4000 accelerator slot, 030 socket, 020 socket, 000 socket, etc. have also come up, and could most likley be used via adapter, or do new PCBs directly targetting those and reuse the FPGA softcore stuff there. No reason a TG68 or N050 or whatever can't be plugged into any one of those things, but this topic came from the 68060 issue and desire to have better than whatever it is we already have.
If someone wants to pump years of work and thousands of dollars into an easily redesigned FPGA replay addon that a hand full of people own and the already hard to buy 060 cards, that's their time and money.
It just doesn't make sense to me and I hope it doesn't take resources away from anything actually useful to the community.