[RichH]

Thanks guys, appreciate the comments as things have moved on so much. I was thinking of these but welcome any specific advice on alternatives:

Motor
http://www.hobbyking.com/hobbyking/s...or_3983KV.html
http://www.hobbyking.com/hobbyking/s...or_4620KV.html

ESC
http://www.hobbyking.com/hobbyking/s...Version_2.html
http://www.hobbyking.com/hobbyking/s...w_Reverse.html
LIPO
http://www.hobbyking.com/hobbyking/s...APPROVED_.html

Where can I find out what's approved/not?
Cheers
Rich