NORM P. - I agree with Myron, keep the manual PTO on your 129.
STEVE B. - Wish my snow blade had power angle. It had four BIG pieces of angle iron welded onto the back of the moldboard and pins to the loader lift arms with the bucket's 1" dia. pins. To angle it would require moving the blade W-A-Y out frt of the lift arms and the tractor/loader/blade are plenty long enough already for the areas I clear. Nice thing about a blade on a loader is making HUGE piles of snow is REAL easy. Super H, loader & blade piles 6-7 ft tall are easy, and with the M, loader & snow bucket I used to make 8-10 ft tall piles when I was a Kid. The Stan-Hoist loader on the M lifts quite a bit higher than the loader on the SH.
BRIAN M. - Yes, a standard composition head gasket should work on your CC. The soft copper head gaskets are used to bump compression that last little bit for pulling. The oil you mention is the copper gasket leaking compression. Check both the head & block deck for flatness. Torque the new gasket per Kohler's spec's, run the engine and re-torque and things should be O-K. You don't mention what's been done to the engine for pulling but I doubt You'll be able to tell much difference in performance between the leaking copper gasket & properly sealed composition gasket.