Any magnesium wheel gurus in here?

[MD427]

I will follow up on this. As one of my pet peeves on web forums is coming across a question that someone had similar to my own, and never chimes in with what worked! Lol.
......

I decided first order of business was to get a tube in the tire so the car could at the least be rolled around the shop/garage. I contacted Coker Tire and asked them about. tubes. He recommended a size immediately ("225/235R14/15 Radial Tube | TR13 Offset Rubber Stem" ). I mentioned that we had previous fitment issues and wasn't sure about the provenance of the wheel. He assured me that TR13 would be correct if the wheel was "right". Happy to say that nailed the problem on the first try, shop had no issue fitting the tube. Assured me construction of these tubes is sufficiently sturdy to run with modern radial tires.

So there you go GT40 style Halibrand wheels (front) take TR13 tubes from Coker Tire.

With that out of the way, I wasn't flying high with confidence on the shop after working with them for some time. So I asked around and found someone who came really highly recommended to me from a trusted source. Further away but bit the bullet and shipped the car on flatbed to the new shop. New mechanic pointed out a couple things after looking the car over.
Summary:
1) Claimed work to fix the leak hadn't been done. No sealant, no epoxy, no nothing, so of course it still leaked.
2) There is no "crack" or damage, at least visible to the discerning naked eye.
3) There is some porosity causing pinhole air leaks. Properly coating that should fix, has yet to be attempted.

As far as the wheels they seem otherwise sound. So I'll probably run them for a while longer, at least. The other 3 still are holding air without issue.

Someone asked what I know of the wheels history the truth is not much. They are Magnesium, they appear to be real Halibrand by any marking I can see. No idea of date of manufacture. Wheels came on a Contemporary Classics build.

1985 CCX, can you elaborate please on your oil treating process, I may attempt that next go-around.