Kia ora Lojo,
Jonathan gave some great advice above!
One other option could be looking to your crowd to see if they would want to invest (either in part or for the full $800,000 required). You could do this a few different ways – but I really loved how the “Own the Factory” crew down in Dunedin did it when Cadbury decided to stop making chocolate there. They set up a simple website and form, and a Facebook page, and activated their community – asking them if they wanted to keep chocolate making skills and jobs in the region. They had over $5million pre-committed, and ended up launching a campaign to raise the investment a few months later.
If you want to talk about this a bit more – let me know!