So I’ve scouted out some equipment. Infinity Motorcycles, Farnborough (https://www.infinitymotorcycles.com) were a great help. Big shout out to Ash for all the advice, walking me through everything, and not laughing at my lack of knowledge.
Found some great deals on a Shoei GT-Air TC-5 helmet, which fits perfectly.
Also Alpinestar Andes Drystar jacket and pants, which fit perfectly (yes I’m a ‘short’ in pants, but I’m a short-arse and always have problems finding trousers that fit). They dont have the trousers in stock right now, so I’ll think about it overnight and order tomorrow if I decide to go ahead.