I’m in Denver area and bought panels, rails, and inverter from CED Greentech. They were okay. Apparently they’re having trouble sourcing materials, and have massive demand due to the expiring tax credits. So if you’re thinking of going this route, buy the materials and have them delivered, even before waiting for utility/county permission.

I talked to a local engineer for drafting plans. I didn’t know what I was doing so had to go through 4-5 revisions, which the engineer got frustrated by I think.