What I have is overkill, but I wanted to future proof and only have to buy equipment once.
I have an Aims 1500W pure sine wave inverter/charger.
I run it off a separate 150amp/hr battery. Knowing me I would accidentally leave the inverter running and kill my car one day so I opted for a second battery.
Full charge I can run everything for probably 10+ hours straight, never run out of power yet. I just plug it in with an extension cord when I get home for the night. If it did ever run out of power, it acts as passthrough charger, so I can just plug in on site and continue working.