If you want to mow the grass too, look for and old Gravely Walk Behind Tractor.
It's a two wheeled thing with handle bar like controls at the rear, a rear mounted engine (7 to 16hp), and a PTO type drive unit at the front.
They also made a riding mower that had a rear engine and PTO but I never really looked into these.
They made three types of mowers for it, the most common are a brush hog style, a twin blade for lawns and a rare reel type.
They made snow blowers and plow blades, I think the blow is 4' across.
It wouldn't take mush to adapt or make a pulley setup to power a pump or generator.
Here's one with a snow blower
Killer Gravely kicking back some snowdrifts - YouTube