Yep that is a SANDI 40kw inverter, good eye. While its not listed for sale I think they looking to sale it too, because I've only see it use once last year.

Hi, just as an FYI I thought the members of this form may be interested in a number of LG Chem batteries for sale. I'm working for company that are looking to sell some 3.2KWH LG modules (28 total or 89kWh). These batteries are 1C so they may not be suitable for a car installation, but I thought ...