" If that is your only input you have to offer spare me."
There is a reason people will tell you that. It's called experience.
So, while you are buying $500-800 worth of parts that you think you need (pump, drive shaft, control levers) don't forget to buy a later model oil pan because loader use causes them to crack, along w/ front wheel bearings, 16" tires & rims and a new center axle.
And when you are done, you will learn how to make a small fortune fixing up old tractors: start w/ a large one.