Looks like I stopped the reservoir cover leak, at least for now.
Pulled the cover off, and removed the gasket. I have a bunch of rubber/cork material so I was prepared to cut a new one. Noticed a nice groove worn into the gasket, or should I say compressed into the gasket on one side. Thought, hmm, what if I flipped it over and reinstalled it?
Well, I can't believe it but I drove it all over the neighborhood, hills, corners you name it and it has not leaked yet! It used to leak just driving in my yard.
New life to an old gasket, it was in great condition other than the groove. No cracks, still very supple. I love these cars. Try that on something modern haha.
Also, I tweaked the alignment and after a few test drives/adjustments I have it going straight down the road, no pulling hard left anymore. My uncle taught me a trick over 30 years ago to get your alignment relatively close to spec. It's very difficult to describe in words, I call it the "Eyeball Alignment".
For the following procedure, all four tires have to be on the ground, steering wheel centered and ideally held still (bungee cord etc). A four post hoist is best, you can do it on a flat shop floor though.
You look along the inside edge of the front tire towards the back tire on the same side of the car. If you visually line up the front inside edge of the front tire with the back inside edge of the front tire, you should just see a slight bit of the back tire, maybe 1/2 to 3/4 inches of the back tire. That means you are towed in. Do the same on the other side. You can also easily tell if a tire is towed out and make the appropriate adjustment to the tie rods. Not sure how else to explain this. Years ago I did an F150 like this and then took it to the alignment shop. Didn't tell them what I did other than changing the tie rod ends. Guy said it was the easiest alignment they ever did, he moved the adjuster about 10 degrees to get it perfect.
Another bonus of the "alignment" is that the return to center is even better than before. I'm still scheduled to do a proper alignment at my buddies shop after Christmas, but for now I don't feel bad driving it around.
We are having a brown Christmas here in Alberta, so I can still drive the car anywhere, roads are totally dry.