My sheet metal experience
Greg,
I took the sheet metal class in October, and sounds like they made some changes since the time Bryan took it.
The class was limited to 12 people, and everyone kept/worked on their own project with their own station of tools. Now, I think each table of 4 people might have shared some 'specialty' items like a nutplate jig, but everyone had their own drill, rivet gun, clecos, etc.
The instructor said the class was changed up recently to provide an introduction into "scratch building", but they've tailored the projects to reflect more "kit-like" projects. What I mean is the sample project was match drilled and apparently very similar to RV construction. Sounds like the project with an airfoil, hinge, and inspection plate has not changed from Greg's experience. The big delta between our classes is that everyone built their own and received feedback on what was good/bad.
For someone who had zero experience with sheet metal work, I felt this class was very good. 3 of the ~15 hours (total) workshop time was in a classroom, which I felt was too much, but the rest was hands-on building with some experienced instructors. I learned a good deal and feel confident going forward with the RV kit. Your mileage may vary.
As for the RV-specific class, I did not take that so have no basis for comparison.
Others mentioned getting practice kits from vans - I'd also look at buying a trim kit. It's odds and ends leftover (I presume) of various sizes. Good to mess around with and it's cheap $5.00. Van's website is stuck in the 90's so you'll have to do some searching to find the trim kits, but if you poke around the store enough you'll find them.
In any case, everyone here is right - take a class, buy some practice kits, and hook up with EAA and you'll be good to go. Good luck