Just went browsing and bought a couple of supplies all for £24, they had a nice beercan chicken holder for £8 might go back for that lol
If you can, try to invest in a better quality of charcoal or briquettes depending on what you prefer. A lot of the cheaper briquettes have binders in them which can taint your food. A lot of members seem to use the Aussie heat beads which have gained in popularity over the years. They are a bit more expensive but they burn longer and give a more reliable temperature.
If you prefer lumpwood charcoal try to get "restaurant Grade" charcoal as the lumps are a lot bigger, some of the chunks can be as big as your hand, they burn for longer than conventional charcoal and you get a better burn. The popular ones are Big K or the restaurant charcoal that is in a blue bag.