one final thought, geared toward McPherson graduates.......yes I know Im going a bit off topic......
Instead of working in a restoration shop-of which there are few, why dont some of these grads set up to do tanks, fenders etc. Papa Nic has had a nice side hustle for yrs here of which he has countless happy customers. I know opening large commercial shops isnt viable in most cases, but Brassworks has steady customers, as do rad shops doing a good job on model A radiators. Yes Bergs didnt make it, but brassworks chgs around 1k for a rad and still in business. Proof that it isnt ALL impossible. For some reason, outlooks on the Barn tend to always be pessimistic. There are many flavors in life.
Ronn, while I am not certain I have the answer to your question(s), I do feel I have enough first-hand experience with what you are suggestion to at least partially answer you.
So with that said, my thoughts are based on personal experience with me hiring people straight from college including 2 graduates from McPherson. Adding to that experience, my son is an automotive & motorsports instructor with an accredited Tennessee technical college. My point is to explain from this perspective of what we have encountered.
In a nutshell, I think you are expecting these students to be able to go straight out of school with the knowledge to be able to restore gas tanks, or rebuild electrical components -or restore carburetors, engines, etc. Unfortunately that is not how the educations from college-level instruction works in this day & time. Basically, Colleges do not teach students everything they need to know for them to actually do the work, but instead the instructors are there to expose them to to the different areas of restoration or repair. Having hired many of these students, in almost every scenario they must work as helpers or apprentices for awhile before they have the knowledge or experience to do the task on their own. By comparisons, in most trades these days, the requirement for an Apprentice is to have worked for around 100,000 hours of hands-on experience, and most requiring some level of testing to move up to a journeyman level. And so that we are clear, just because a student has 120 credit hours from McPherson, not all of those credit hours are actually spent learning about restoration. Therefore, for these students to do as you are suggesting, they would fail due to lack of experience.
The second side of this is Gery Bergbower
did make it, ...however he closed down because of supply issues -and, he learned he could make more money doing a different (unrelated) trade. Many of the subcontract ideas that you mentioned are great little cottage industries where a craftsman can work part-time to make a little extra golf money, or some $$ to supplement their S/S or retirement. It is VERY hard to make a full-time living in a trade any longer simply due costs.
I am not trying to sound pessimistic, but I do think people need to know facts, ...and if those facts come across as, -or are portrayed as dismal, then so be it.