It will get there I suspect, the tools and batteries can charge in the truck en route. Easier to just fuel up the truck once instead of filling up little gas tanks all the time.
A fast charging, high capacity tool battery takes at least 60 minutes to charge. In high power applications (lawn mower, leaf blower, chainsaw, etc) those batteries might be emptied in a little as 15 minutes.
A better alternative might be corded 240v tools running directly off the generator for high-power applications. 120v tools are limited to 2-3HP which doesn't compare well to gas engines.
You start stacking energy efficiency losses (engine -> charger -> battery -> inverter -> charger -> battery -> motor) and economic losses (expensive serial hybrid, higher than expected vehicle battery cycles, still need a large number of tool batteries which wear out in about a year, etc.) though.
120 VAC:
https://youtu.be/dIZsACfqB-E?t=46
and it has 20kWh battery:
https://carbuzz.com/news/2023-mitsubishi-outlander-phev-has-...
I feel cars have been stuck in boring mode for 2 decades, but now with zany stuff like power outlets and such, they are getting more interesting.
Instead buy 120-volt and 240-volt leaf blowers. BTW 2-3 horsepower is plenty (probably too much) for one man.
We use water hoses w/o bitching too much. We could used corded leafblowers tomorrow. Or butch up, get rakes and get in shape: cleaner air, more exercise and longer hours for the lawn laborers.