I just signed up for the 2
Annapolis classes that was just mentioned. I'm in
Florida so I'll fly up and stay in some lodging. Prolly rent a car to pass the evenings and check out the area. The whole trip,lodging, classes, air fare,
food and car will prolly be a little over 2k.
I did search Mack Boring but it seems their man Larry who teaches retired and so did the classes on diesel. It is a little pricey but the value I believe I'll gain will be repaid my first WTF moment.
I know this is not the direction you asked about but it may fill in part of the whole diesel
training picture.
Good luck