Clearly you're not a lineman. As i said primary fuse is in the can. To take the can off line you open the csp switch and then the tap gets lifted with a hot stick. Been there, done that.
Come to New England, they are quite common. The utility i spent 34 years at uses them on most every single phase transformer, both over head and pad mounted. Not a nightmare for anybody, just another option. Here's a pic of the transformer that feeds my home (different utility from where i...
Some utility transformers have secondary breakers;
A Completely Self-Protected (CSP) transformer is a distribution transformer with integrated protective devices—including internal high-voltage fuses, secondary circuit breakers, and lightning arresters. These units, often pole-mounted or...
Floetrol works good, but i prefer XIM to retard the drying speed of latex paint; https://us.amazon.com/11072-X-Tender-Leveling-Additive-1-Quart/dp/B001NOCL5E?tag=atomicindus08-20
This is the first and best option I'd be persuing, have you explored it yet or are you just assuming the answer is no? Maybe explore a land swap so lot sizes stay the same?
Did you notice that there ard four current values and two frequencies listed on that nameplate?? First two currents are 2.8/1.4 at 60hz, second two currents of 3.4/1.7 are 50hz. The motor also has two temp ratings and speed ratings for 60/50hz.