Selecting outrunner for crt .5

[Metallover]

I am trying to pick the right outrunner if I decide to go with an outrunner on my crt .5. I am wanting to go with 3s. Here is the outrunner I think should work - http://www.hobbycity.com/hobbycity/s...idproduct=7073

I'm also considering this one - http://www.hobbycity.com/hobbycity/s..._1250Kv_/_630w

I will need to find a 4mm drive cup or an adapter if I use one of these motors.

Any objections/suggestions?