We will be using a 10x10 and a 15x4 prop this year. Where should they be placed?

Context:
We only use 35 to 35 and front sideline to 4 steps before the hash.
30 kids in the program.
All percussion is on the front hash except keyboard, which is on the sideline at the 50.

I'm not sure if it makes sense to have them by the hash and angle them in so the band is "staged" and takes up more space, or have the 15x4 on the front.