No worries Noj. The car just arrived now, and I got to speak with Colin at Tamiya UK and he says that I will definitely get it running. Modelsport do small batteries (still don't know the exact size need to look over the kit) but yeah, the only issue is going to be the servo and I'm pretty sure it will be the micro servo that ends up fitting. Looking at the instructions the monopolised Tamiya servo slides in on two sets of tabs and there are no screws. So, I will probably have to Dremel off the mounting part of the micro servo and stick it in with double sided foam.
Colour scheme.. I want the car to be metallic brown and the wheels gold. Either that or metallic orange and gold, depending on availability of the paints. I won't be painting it for at least a couple of weeks though as I am a bit busy now.