[Jitse]

My reply toke awhile,

The custom fittings which I ordered from a local supplier, did not have enough clearance with the powersteering pulley, a couple of millimeters lack of clearance with the AN (straight) fitting.

Changed plan by modifying the flow control valve adapter and tig weld AN to 1/4 npt 90degree steel fitting on it , I cut of the 1/4 npt part of that fitting.
After that it was not a big deal to modify the rest of the powersteering hoses and fittings.
adapters m16x1.5 to AN / m18x1.5
Used 1 banjo fitting 6AN M18x1.5 and 1x 6AN x m16x1.5 straight adapter on PS unit, on the pressure lines usage of powerflex hose and on the hose which comes close to the headers, added silicon heat protection cover.

I am re using the power steering return line to the cooler, its not a big deal to modify this part to braided hose with AN connecters, if you want you just need some AN to barb adapter fittings, to connect the outlet from the tank and the outlet of the cooler. In between AN hose with fittings ( size of hose is out of my mind 3/8")

I am not using the plastic cover any longer, which protects the steering rotating assembly coupling.
In case heat is to extensive, I can add a heat shield and connect it to the headers bolts.

This job is not to difficult to do at yourself, but you need the proper tools to get the powersteering pulley off and back on.

I've someone can check if the flow control valve is the same on the L98 or LT1 saginaw pumps, it is simple to buy just a new flow control valve and modify it and keep the original as backup.