Batteries the Gens Ace 5300 65c are very good and only £36 a pack - better than their higher capacity lower C rating packs.
http://www.giantshark.co.uk/product/...-hardcase-pack
Chargers - wide choice from less than £20 up to £200 - you can pick up a ac/dc dual input for around £30 such as -
http://www.giantshark.co.uk/product/...6-dual-charger
Motor - if you are running tc at a club then the most likely class will be 17.5 blinky (bit like the old stock class) or 13.5 boosted - you can pick one up in the for sale section on here for a reason price.
Speedo - Hobbywing extreme stock is good and Demon are doing them for £57 and you can set them for blinky or boosted.
http://demonpowerproducts.co.uk/prod...oducts_id=7920