That baby with 8S???!!! Are you looking to reach 0-100 in 3 secs? Hehehehee ... I am pretty sure she will fly on 4S and on 5S she will be pretty fun. With 6S, you will be enjoying things a lot. You need to get the right motor as you do not have much ground clearance.

If you wanna go with 5S I would take the same motor with about <650KV with a 12x10 prop and on 4S maybe something in the 700 KV range for a 12x10 too. You can expect to pull about 50A on the 5S set up.