Finally finished traveling and had a chance to mostly wrap things up tonight.
Ran conduit from roof to basement to meter. About 100 feet of conduit in total. Ran the wire and hooked it all up. Only remaining piece is buying a 40a breaker and wiring up at the main service panel.
Then I schedule the electrical inspection and the net meter install.
Here are some pics of the wiring:
https://imgur.com/a/IW1ly