Those folks are a half-hour drive from us.
About six years ago, they quoted nearly thirty thousand fed-bux for the system we wanted.
We read photovoltaic books at the library, and completed our system for about three thousand... after we realized we could eliminate 99% of the stand-still house junk we thought we needed.
Suggestions to thread-originator:
* photovoltaic is simple after you understand it
Read some, apprentice some.
You might be amazed at your ability to learn.
I know I was!