I bought 20kw of solar from China that arrived this year, the quote I got for installation was about what I paid for the whole system. I'm thinking about just installing it myself.
I think including shipping and import fees it was about $26k. I looked at getting panels directly from a supplier, but it's very difficult to figure out which companies actually manufacture things. I ended up buying from one of the many companies that buys components and packages them together into complete systems.