Historically, having the OEM turbo either in the engine bay or on a shelf was, at least, a $10k value enhancer. Been over 20 years (or longer) that an OEM turbo could be ordered from the factory.
My issue with the modern ones is a leanness issue for the Kugel. My Garrett wanted 15 PSI, which was too much for it, according to Korman. I thought we could tweak the Kugel to give more fuel, no?