I just did a search on the parts store i have been using for the past 20 years. Searched for various parts for 1968 firebird. They don't have any power steering parts in stock. Nothing. No gasket sets. only valve cover gaskets and intake manifold gaskets. That's it.
Most everything now has to come out of a warehouse in Phoenix which can take a day or 2.
Here we go

Did either of these templates ever surface?

X2 for VR1. Usually Walmart is cheapest, sometimes Menards.
RockAuto has Wix filters about as cheap as anyone.

Only Brad Penn or VR1 goes in my engine.

I just ordered conventional Pennzoil 30W (as I've always used in the '68) from Amazon.

When I saw it was a case, as pictured, for $38.49 I thought, "wow the price has really climbed." Then I saw the "case" was 6 quarts, not 12 like they were since always. Good grief.

I get most of my oil from Walmart and use their brand of oil, I have seen tests of the oil, and it compares to the name brands. I check Rock Auto for AC brand filters, they are usually the cheapest but sometimes the shipping costs more. I also compare prices with Amazon because of the free shipping