Injected Memory Foam Racing Seats?

A few weeks back I had the chance to sit in a Sparco torino seat with the injected memory foam and ive never been more comfortable in my life. I know that ill have to fabricate custom brackets and everything and i have no problem with that, what im trying to figure out is which seat to get. I don't have $900 to spend on a pair of sparco torinos so ive been trying to find another racing seat that has that memory foam in it (its unbelievable) but i havent been able to find any. Someone said something about a Tenzo Type R seat that might have had it but im not sure?