If the motor comes with a forged crank, stage heads and the block, that's a steal! Wish I had 4K, I'd pick up a spare. Mine's set me back so I can't come up with the cash.
What's the stroke on the crank, assume it can be used? Also, can the rods be used? Does it have 6 or 4 bolt mains?
Damn, wish I had the cash, sounds like a great deal.