It can be done if your pockets are deep enough and you are willing to go there and have time to spend waiting for it to get done.
As for the Chevy engine it is a new cylinder head, symetrical spread port deal. It wont be coming in anywhere near $16-17k
My guess on the new ZZ632 price is $28,000 but that is just a guess based on where the market for 1000 hp BBC crate motors is. Some of it depends on if the EFI system is complete with controller, injectors and throttle body or if it is just a bare intake manifold. The EFI system alone will add another $5000 to the bill. Shafiroff sells a 632 twisted 20 crate engine that makes 1000 hp for $22,000. By the time you put some good parts on it the price goes up a few thousand but it is still a good deal compared to asking the machine shop at the local NAPA to build you a 1000 hp engine.
https://www.shafiroff.com/chevy-pump-gas-engine/632-bigdawg-twisted-sr20.php
