You could try modelsport: -
http://www.modelsport.co.uk/team-c-j...roducts/369400
The TC02 is the same chassis as the Jekyll so you have the option of prepainted (plain white, with stickers) Jekyll shells - on the web page above, look at bottom right and you will see body shell options.
Alternatively, get a clear shell and ask a painter to do a design for you - I'd recommend a shell from Steve Haskins (Penguin RC) and then paint by Mike Parker (Number5 Designs) - but look at any thread on here under the graphics sub forum - there are plenty of highly skilled artists out there.
A ready done shell looks to be approx. £17.50 from Modelsport (Bit boring really :-) )
A clear shell from penguin is £12.50 and a pro paintjob will be typically £30
I don't know your location as to whether there is anyone local?