I dunno, it all sounds like the going rate for a "12 port" setup once you get all the stuff it would take to make it run (somewhere between $5-12K).
I'm not trying to make light of it, as I don't have that kind of cash either; bt that does seem to be the "price of cool" these days.
On the other hand, a "24 port" should be twice as cool, no? (IIRC the Falconer head for his I6 has individual ports for each of it's 24 valves)