Parts Cache
I admit, as time marches on, so do more and more people go to the modern drivetrain. Restomod. Something to consider. But they do not make more of these old engines, supply keeps shrinking.
If you buy these pars right, you would be safe the long run.
My general run of thumb is never buy any project, car or part that I will not love as long as I want it and IF I decide to sell I will not lose a dime.