Well said, no one even knows where you live with no location in your profile, so no idea what codes, labor rates, material cost your dealing with.
Rule #1, no one has ever built a shed to big.
Alway's cracks me up when I drive by and someone has at least 2, sheds and there out there building a 24 X 24 garage.
#2, No one has ever ran too much power to an out building.
Way to many times I've had to deal with under sized wiring ran to sheds and garages built to minimum codes, far cheaper to do it right the first time.
Want to add a welder, window A/C, woodworking tools, later on there may not be a way to do it without all new wiring ran.