Go and buy some of these:
https://www.amazon.com/27L572-Genteq...a-781813059816
(this is not a specific product endorsement or advertisement, you need to get some of things LIKE that)
When TSHTF as you all say, and you come across a sucker rod pump in an oil/gas field and you want some crude or some gas (depending on well) the pump was running once on 3 phase AC. If the pump is the size of a sunoco gas station, this wont help you but if it is small, like 90% in the ANF for example or around my state...you wire the 3 phase motor to 1 phase 240AC using this cap on the 2nd leg and the pump WILL run.
I can supply the schematic to the ones not afraid of a little current. so you goto a farm or field (most fields are 377/408v-ish so beware - this might not work) with your coleman powermate, some 10ga extension cord, a few tools and voila, the motor will run 2/3 power and you can re-prime the well for gas into the house (very common) or run to grab some crude which can be converted to tar and diesel which is another topic.
This is a hack because I got the idea about 20 years ago when I had a CNC machine making company as a client...some of the employees had their own mills at home for side work and they ran the 3 phase drive motors on single phase household just fine.
of course this will work on any industrial motor for some place you want to get running. if you need to step up from the coleman powermate 240v to 408v or something funny, I can detail transformer wiring. (hint, a step DOWN transformer will work in reverse, just beware of the power factor)
I dunno if yall have a thread for the seemingly hard hacks, but ya should.
Next week: "chicken of the tree - can I really eat that?"