In 2019 I got there the Saturday before the show and it was packed with RV's trying to get in. That was also the year that the rain caused them to close Camp Scholler for several days. We tent camped and I got my credentials before they stopped giving them out, so we parked along the highway and hiked in to stake out some spots.

I have a feeling this year is going to be more crowded than usual. I would recommend getting there the Thursday or Friday before. Scholler is a giant campground though, so as long as you get there a few days in advance you will be able to find a spot, though it may be a distance out.

I am driving up that Saturday but will be camping in the North 40 with my friend's plane. I hope you have a fun trip. Oshkosh is amazing but I want to warn you.... once you start going you will want to come back every year!