Brent, Thanks for posting the pic of the shovel attachment. It looks much easier to attach then the backhoe.
My Bob is a model 444 manufactured in 1963 rated to lift 1000 pounds However it does have a little extra weight in the form of rail road iron chained to the back.. The most it's ever lifted is 1300 pounds of bagged cement on a pallet just enough to clear the floor & move it out of the way.
Bob is powered by a 16 hp motor that has been overhauled about 50 hr. ago. Has rebuilt hydraulic cylinders, a new reeves drive system, the last out of North Dakota no more available accept maybe a rebuilt. To go with Bob I have 2 buckets a large one & smaller one a set of forks & a backhoe & a low un-sprung trailer made just for it. The only brakes it has are the steering sticks.
Does your Bob have some kind of brake system?
Bob isn't big or heavy duty but he beats the heck out of muscle power.
You may find this interesting Bob's history....
http://www.skidsteerhistory.com/How it began.htm