I’m looking to build a mobile tyre van

[Matty24]

Hi guys I’m looking to build mobile tyre van but am unsure weather to use an inverter or generator and struggling with watt sizes etc.
Thinking to use a 3000w inverter and 100l petrol compressor is this sufficient. Or do I go with a 7000w generator and run everything from that.

In regards to the inverter set up the machines pull a combined 1500w but I’m worries about what it will pull on start up
Any advice.

Thanks.