Great write-up. 2012 was our first Oshkosh trip as well, but we drove. This year I want to fly up, although I'll be spam-canning it in a rented Archer.
I didn't realize they had a system in place for handling shipped gear; that's good info. I might even be able to recruit another friend to come along and split the rental costs up some more.
Nice write-up of our trip. But it wouldn't be complete without a mention of the bus ride into Oshkosh and fine dinning at "the Roxy". We ate like Kings.