Replacement parts availability ALWAYS tells the tale about how good your NOW "Vintage" (that means OLD) daily driver vehicle really was when new and is NOW that it's OLD!
Got a 40's thru 90's Chevrolet or Ford truck you probably golden for your entire lifetime easily obtaining damn near any part you will need overnight to keep that "Vintage" POS that you love so much running and driving you happily about your merry way on a daily basis.
Got a Edsel, Rambler, AMC or many other "Orphan" brand vehicles or make/model as your "Vintage" daily driver and you will probably be Sheet out of luck if you are trying to maintain that ole POS as a daily driver.
Just like it's always been it's "All About The Choices" YOU make as you try to convince everyone else about how smart and frugal you are or how smart and frugal YOU think you are when it comes to your choice of a daily driver POS!