What if all seven motors burn, what then? I would buy more just to be sure
I only have three of the cc/neu's, two 1512 1,5y and a 1518 1y for my first truggy build, a Hyper ST Pro.
And as someone above mentioned, 6s is the way to go. If you want to use 5s, then slap in the 1518 IMO.
Thomas G