Ya Shouldn't Complain
Something that a lot of people forget is that WE make this country the way it is. If there are more parts changers than mechanics it is because, somewhere, somebody decided that cheap, mass produced replacement parts were a good idea, and they also decided that highly skilled labor was too expensive of a luxury to pay just to change those parts. Somewhere, society also decided that computer nerds were necessary, and deserving of fairly large salaries. While, say, a young diesel mechanic sees job ads that read: "Diesel Mech wanted, CDL, Insp Lic, and own tools req. min 5yr exp $5.75/hr". If YOUR kid has any aptitude, which road should he take????
Another thing is that you are dealing with what is, in reality, an obsolete piece of farm machinery, People don't expect that said computer person to know how to set type, or fix an abacus. Then, why do you expect your local auto mechanic to know how to work on an old flywheel engine? Mr. Billet is right, what you are looking for a fairly specialized worker.
It could be a LOT worse, steam guys have to pay an arm and a leg to an ASME approved shop with the right forms and stamps to perform most boiler work, even jobs that many of us could do just as well ourselves.(The states like that $1M liability insurance policy to back the patch, I guess it works even better than plate.)