I have a 5.2 in my 55 Dodge, cant help you with the power steering but
the rest I have pretty good sorted

I use a Walbro inline pump but if I do it again I ll go with a in tank pump

I believe the 5.9 needs a fuel pressure regulator , I have heard that there is a GM product that works, fuel regulator/filter from a corvette, if you can use one of those on your car that is...