Well after a whirlwind of buying stuff I think I finally got everything I need except a few other bits (and excluding tools) ...
AP Helmet and armour kit
Boots
Helmet Fans
Aker+iComm
Canvas Belt
Rubber Gloves
Neck Seal
Holster
Hovi Mic Tips
Drop Box covers (inside)
Helmet screen
Darker lenses
1/4" Elastic strips
Other stuff I think I need
Doopy Doo's E-11 Complete Replica (definitely)
S-trim for Helmet
Random bits - Velcro, E6000, Novus 1,2,3, Humbrol (4 paint kit) etc.
Helmet padding
Possibly a second pair of Nomex gloves (more for trooping vs. for show)
Undersuit (going for UA I think for comfort)
Balacalva (is this needed?)
Stuff I missed!
TD clips!
Helmet bag
Did I miss anything?