You need the high pressure line from an Econoline van. The gear box may sit a little differently in relation to the engine, but you should be able to message it a bit and make it work. Mine was less straight forward because I also converted to hydroboost brakes... but if you are keeping vacuum boost one of these should be just fine:
https://www.rockauto.com/en/catalog/ford,1985,e-150,5.8l+351cid+v8,1111251,steering,power+steering+pressure+hose,7320
The return line cooling tube in your truck is probably fine, I’d just replace the rubber hose section with by-the-foot stock from your local parts house.
Curious as to where or what you got the hydroboost from?