Wanted - Northstar engine management system

I have a 1996 Seville Northstar mounted in my sand buggy and would like to replace the factory harness / ECM that's in there now (it's kinda ratty).
 
Can any of you point me toward a vendor that provides aftermarket engine management systems?  The only thing that I can find is from Holley and it starts just under $2,000.
 
Thanks

http://www.megasquirt.info/megasquirtleft.htm
 
I use it in my '86 Conquest.
Runs and drives as good as any of the big ones.