hey bud welcome to rc drifting! for a 19x2 i would look into a orion element, a trinity komodo dragon, or a trinity charmeleon. i have one of each and are great median between torque and speed.

leds- if you want the underglow the only company i know that makes one is yokomo. there a bit pricey and were down your battery, but are cool for drifting. also look into headlights that you can buy for your body. all you need to do is buy light buckets and the LED's are your set. those can get pricey but i have seen used ones on ebay or other companies version for not to bad of a price.

for hop ups i would do for your tt01. i would look into, a ball differnetial (not necessary; you can lock the diffs on the tt01 very easily with a simple diff mod), a metal motor mount, ball bearing set, aluminum prompt shaft, oil filled shocks, and drift tires. REMEMBER ALL OF THIS IS NOT NECESSARY but it helps to make you a a better and better drifter when you have the equipment set up properlly.

also look into DRCCENTRAL.COM they have a forum for drifting in the UK. hope that helps and enjoy!