So, I want to upgrade a Proboat Mini C to brushless and here are some components I was thinking of using:

Motor:
http://www.hobbycity.com/hobbycity/s...idproduct=4201

ESC:
http://www.hobbycity.com/hobbycity/s...ies_25-30A_ESC

Battery:
http://www.hobbycity.com/hobbycity/s..._30C_Lipo_Pack


Would these work well together and secondly:

Would I need to rig a water cooling unit into these components so that they run cool? If so, where can I get a jacket for that motor and for the esc?

Thirdly:
I was thinking of upgrading the u joint to metal and keeping the servo the stock. Is this good?

Thanks