Septic- we built a smaller building with bathroom approx 150’ away from our existing home.
Waste goes into a tank with a grinder pump then a 2” pipe to the main system. Works really well. Septic guy cautioned against a separate system due to minimal use.
Power-it was cheaper to have an...
I religiously mow an area that looked like that when we first bought our place.
Borrowed my neighbors skid steer with front mounted bushhog. I did it in the winter. It’s most grass now after keeping up on it for 4yrs.