Novel idea: How about tractor manufacturers make SCUTS with a wider stance since a lot of small property owners have slopes to deal with. We're not farmers with 1,000 acres of flat land!
In order to place the front and rear tires on the right side in the previous furrow when pulling a moldboard plow, the centerline of the front tire must be inline with the centerline of the rear tire. Plowing was the primary application for tractors until Roundup was developed by Monsanto.
This accounts for the rear wheel spread of tractors when delivered by dealers. If you want rear wheels spread wider, you need to request same.
"Wide & Low" tractor formats used to be offered. Wide front & wide rear. Turning radius opens quickly and more stress is put on a wide front axle. Not sure, but I do not believe Wide & Low tractors could fit Loaders.
Power Trac, Ventrac and Steiner, each with equal size wheels all around, are far more stable on slopes than traditional tractors but tractors lose tractive power without large rear wheels.
Power Trac, Ventrac and Steiner have articulated steering, rather than axle pivot steering, which becomes necessary when heavy work will be done from the front of the tractor. (Front end loaders ('Payloaders'), used in construction, also have articulated steering.)