Mine was never an exercise in practicality - it would be ridiculous to implement, and complete overkill. OTOH, I wonder if someone would build something like t

Mine was never an exercise in practicality - it would be ridiculous to implement, and complete overkill. OTOH, I wonder if someone would build something like this - a 6502/65816 with lots of SRAM and system-bus compatible timings - using the cheapest commercially available foundry, how much could it cost.