With apologies to the OP for thread creep...Jim - do you fly to Oshkosh each year? Where do you usually stop along the way?
Short prelude answer: I have been going through a "domestic realignment" over the past four years. My now-wife has only been to Oshkosh once but she had a really good time and enjoyed it. My then-wife has made it economically difficult for us to spend a great deal and it is $2K in fuel from the Left Coast to OSH in the 182. HOWEVER, that long-term then-wife nightmare is over and we can now look forward to stable domestic finances.
Having said that ...
Elko used to be my first gas stop, but the new FBO has priced fuel WAY out of the market. Wells is a perfectly wonderful gas stop, but there are no amenities but porta-potties in a shack.
Next stop is almost always Evanston. Great stop, fuel discount if you are going to Oshkosh, and a good overnight stop if you need it. Courtesy car and good folks.
Next stop is either Torrington if I think the next morning's openings are to the north through South Dakota or Cheyenne if I think I need to go through the underbelly to the south. Caution on CHeyenne. It is on I-80 and is either a day's drive from a big population to the west or a day's drive from a big population to the east. DOn't land and expect to find a motel room unless you've reserved it that morning.
From there you are pretty much on your own to pick your way through good gas stops (airnav is your friend) but I do recommend Portage about an hour out of Oshkosh to refuel, drain the personal hydraulic fluid, stock up on the great brats always on the fire, and a truly nice place to be.
Does that help?
Jim
Sam