Within Europe, some local supplier for the discretes. And say Olimex for the pcb. One might get the cost down.
The ONLY reason I started with digikey was due they are a Xilinx FPGA distributor + their parametric search. And they happens to have m68000 aswell.
The tricky components are FPGA & m68000.
Anyone that can optimize the component sourceing will contribute to make more minimigs a reality.
If you have Linux ISE >8.x installed you can try these automatic build files (Makefile):
http://filewebhosting.com/download.php?file=476Minimig1.tar.bz2(ISE GUI seems to love to crash)
If you do try the minimig verilog compile, please post which cpu type, cpu frequency, memory size, memory type, operating system you used. And how much realtime that was needed.