Would it work?

Don't see why not.

Probably ways to do it cheaper depending on how much capacity you need. If just enough for power steering, that is usually done off the power shaft that drives the controls. Should be able to scale it up if you need more flow.

You could use a 44 pump to control a scarifier, or like a 112 I saw with worn lift gears they used Hyd cyl's in place of the lift links to adjust the blade for finer grading

Hi, Andyindy.
I can't see any reason why it would not work, unless there are some slight differences in the radiator spacings and/or mounts. If you already have all the bits, it shouldn't be too hard to do.

Re STEPHEN'S comment about the blade lift rams in place of the lift links, this makes them a much more 'user-friendly' machine 'cos you don't need to alter the lift links to get the blade right out to the side for cutting side slopes. It is also easier on the wrists, especially if there is much wear in the dog clutches or the lift gears.

Here is a link to some fairly detailed instructions for adjustments to cater for such wear.

http://www.acmoc.org/bb/showthread.php?20409-Cat-12-Graders-Pre-G-series

Just my 0.02.

Hi all, thks for replys! Was thinking of using a belt driven alternator and possibly a belt driven hyd pump from a Massey combine with the crank mounted PTO shaft. I realize some fabrication is needed, but have a machinist background and basic tools, lathe, shaper, ect. Really don't need hyd system yet, but could add it later, but the idea of replacing links with cylinders is GREAT!!! After it is all fabbed up, I have some louvered panels to enclose it when done. Keep those great ideas a comin!!!!👋
Guess I'm looking for the crank mounted PTO and whatever is needed to get it set up. Any body have
one for sale?
THANKS, Andy....

I would look the existing power shaft over for convenient spots to mount pulleys etc. Its a live shaft, turns at engine rpm and is designed to transmit some HP. My old 212 had a pulley mounted at the front u-joint to run the power steering pump. the floor of the cab might limit how big of a pulley you could mount.