Mini C brushless questions

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

Make sure the battery will fit by my rough measurements on my mini c the battery will be too big the hatch wouldn't be able to close fully. Second I would and have already upgrade the servo try the traxxas 2065 waterproof one it fits perfectly but then you will also need a different esc and receiver.

I would use water cooled ESC just in case. Maybe higher AMP rating ESC also just in case....

I already have one of these batteries for my Mini Rio brushless conversion and I will make sure that it works before I get it using my other battery.

I found one of those servos on ebay so I will have to also look into that and I was planning on water cooling the motor and esc but I don't know how to do the watercooling with the ESC that I showed on here.