It has been my experience that adjustable wrenches fit all things so-so judging by your varied calibers you like choices....ALOTI have an adjustable metric wrench the works for everything/ Some refer to it as a Crescent Wrench as that company had a lot to do with it's popularity. It is not a Crescent Wrench, they are SAE, mine is Metric
It can be cumbersome though.
Seriously while I agree that a larger .380 would be appropriate for many of the jobs, it would be a second third or even fifth handgun round for the supply system.