Is there a tech article for rebuilding a power steering box?

I have a FSM for 1970 and I'm waiting (too long) for the one I bought through Bishko.
I just ordered a kit that includes bearings fwiw. I see that the FSM calls out several special tools as usual. IME the FSM often calls for special tools that are not very special and substitutes are easily available. Those that are indeed "special" I think I can make myself.
I'm glad I tore into my steering gear box because one of two needle bearing cages was broken and the box was not operational. I never drove this car, btw, so I had no idea that it was bad.