I'd be happy with an 030 + RAM, I need nothing more than an AGA WHDLoad machine 
I want AGA, RTG, 24/96 AHI compatible sound, USB, Ethernet, and an 060 running at no less than 100MHz before I'd shell out for an FPGA clone.
Basically I want someting that outperforms my A3000/060 and could be fitted inside it's case when it eventually dies of old age.