Thanks, yes doing everything (also the CPU) on the FPGA is possible. But even the fastest FPGA M68k (Apollo 68080) are limited to ~100-150MIPS. The Opensource FPGA M68k (e.g. tg68k) achieves about 20 MIPS maximum. So adding a Pi with emu68 boosts the FPGA system to 2000+ MIPS :)

Boards ordered. Let's see how many errors I did :)

Indeed, but the memory controller needs some adjustments for AGA first.