As for an ESC - I picked up the MTroniks Cirrus ESC to use in my MiniT. I am doing a 540 conversion and also picked up a 19t motor for it. Not just what brand it is, the can is all black with no writing. Just one I picked up in my travels.
http://www.mtroniks.net/images/LgImages/Cirrus.jpg
Only draw back is no revrse. When I am in the house, I like using the reverse.
Specs:
Competition Forwards Only ESC
Fully programmable competition forwards and brake ESC
100% Waterproof
No motor limit
4.8V to 12.0V Operating voltage
Selectable drive frequency
0.007V drop at 10A
Maximum current rating, 220A
Continuous current rating, 50A
Dimensions : L28.0mm x W31.0mm x H15.5mm
Weight : 43g
I now need to figure out what I will do for the servo when I replace everything.