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A Spartan 3E 250K has 5508 logic cells. If I understand correctly, this is not enough for a design that needs 90K LUTs, though I'm still learning about all of this.
I'll try to put my serial design online as well. That fits into 3K or 4K I think, although it's obviously much slower (64 cycles per hash). It's a nice toy for people to play with if they have smaller boards.