When to arrive at Camp Scholler to camp EAST of Doolittle?

[glider90]

I have been camping at Oshkosh at Camp Scholler since 1972 (when I was nine months old). Back then we would come up about four or five days before the start and camp where exhibit building "B" now sits. Heck back then even the woods were partially open that late I think. More recently we have been arriving the Saturday before the start, and have basically been camping on 41. More people come up early, and the campgrounds have been absorbed for other uses. All part of change, and I understand it.
This year I am bringing my young family, and would like to camp closer to the action. Does anyone know how soon one need to arrive to tent camp EAST of Doolittle? The area in particular I am hoping for is shown in the red box on the attached image. We plan on getting to OSH Tuesday before the show the 21st ***EDIT, Tuesday the 17th, thanks Sawdust***, the , so six days before open), anyone know from recent experience how well I can hope to fare?
Thanks
~Jim