This is the confirmed attendee list so far.

Dantomkia
Grim Reaper
Bigger Brother
Scorpion
Ripper
M2
Ewe II
Thor
Pussy Cat
Behemoth
Storm II
Toe Cutter
Thorak
Taurus
TAN
TX108
Kan Opener
Killer Carrot
Steel Sandwich
CPG
Iron Awe II
Bulldog Breed III
Mute
Mighty Mouse
SMIDSY
Hurricane
Big Nipper
Flippin humphrey
Edge Hog
Air
Roobarb
Hassocks Hog


Still a few more places.