Old school says moisture is removed before the temperature can change, whether cooling or heating, so how does a oversized unit cool if it can't remove moisture?
Before retirement I made my living with Williams tools maintaining, overhauling engines and gas compressors from 1,000 - 2,000 HP. I wouldn't trade a Williams end wrench for a half dozen oil slick chromed Snap-on's.
I've worked in shops with a hanging heater and glad I'll never need to do that again unless they give me a real tall ladder to work from up there where the heat is.
Look at how little space an wall furnace needs and they can be bought to function with a thermostat without purchased power. Try...
We have a propane heater in our basement as a back up to the central HVAC system when there is elect. power failure. No electric required to operate being the thermopile produces electric power for the gas valve and thermostat. I'd never build anything that required heat without a wall furnace...
That tool in pic #3 is a chain detacher used assemble and dis-assemble square drive chain that was common on older wheat drills.
A search on ebay " chain detacher " will reveal several and some with specific machinery brand names like McCormic, John Deere and so on.