How advanced is the Brandenburg Concerto no. 3(3rd movement) for viola? Age range?

I am in the 8th grade and I am leaving for an orchestra camp in 4 days I havent even started to look at any music but I just got the sheet music for this and was wondering how advanced ppeople usually are who play this. I have been playing for 3 years and the camp im going to is for 6,7, and 8 th graders so I'll be in the highest year. The auditions are for chairs so I don't know if this piece would get me a good one or not? any thoughts/answers are appreciated! Thanks!