I drove a manual steering, so to speak, 64 300 for years. I say so called because the pump locked up and I ran it without a belt for years.

Which is more strenuous than a normal manual steering setup.

No problems.

But I don't spaghetti arms either.

My A body is manual steering, no problems but it is lighter than your B. Alignment spec and steering wheel sizes are different between the two types.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.