Champ... The "BLUETTI AC200 Max" is basically plug and play. You already have a diesel generator.
- All you need is solar panels.
If I was doing this; I'd buy the basic unit + two decent sized solar panels and go from there. If I needed a second battery I'd buy that later.
BLUETTI AC200 Max - US$1,799.00
BLUETTI PV200 Solar Panel | 200W - US$499.00
https://www.bluettipower.com/products/ac200max-power-station