Outrunner CRT.5

I might have to try this idea out on my crt.5

So whats ideal voltage for doing a direct drive? I have a TON of room on my chassis (55mm longer then stock) And its a little wider then the RCM one. Is 6s good, or would doing 8s or something be better?

And do you have a link to that motor? Im liking this idea, and the price is better then a 200$ NEU lol.

Also, is the bottom end snappy? Or is it kind of slow?