As a European three things stood out for me:

- He didn't consult with somebody who had any experience in planning such a project, but a person who - while maybe personally impressive - had zero experience and started by writing scripts to find suitable properties. Isn't the project already doomed at this point? You are looking to invest 7m USD, who will you consult for this?

- He wouldn't do the project unless he was able to get insurance for it. The whole issue of exploring and acquiring mineral rights was just to get insurance for the project. Why not forego insurance? EDIT: Okay, needed insurance for financing the project. I assumed the project would be financed through the crypto gains.

- From ballpark numbers his projected cost of 1,37 USD per Watt DC seems very high (~2 USD per Watt Peak AC). In Europe large scale PV has reached 600 EUR / kWp so building a 4.5 MWp plant should cost more like 3m USD rather than his projected 9m USD. Of course 4.5 MW is small (10000 panels) so this might be part of the issue.

AFAIK, because of protectionism (even pre Trump), US solar is much more expensive than elsewhere.