Thanks
@Crankarm very comprehensive and excellent info - tentwise I'm leaning towards the Terra Nova Voyager XL with additional footprint. But that's from a shortlist of Hilleburg, MSR and Terra Nova and isn't final yet. Stove sounds good and I'd already decided gas would be my choice. I don't drink tea or coffee so it will be cooking only it's used for and less need to boil water. Muesli/porridge for breakfast, lunch on the hoof and stew/stirfry type evening.
Electronics will continue to haunt me - the SON hub is a definite as is some sort of USB attachment only decision is whether I go with a Luxus U with USB built in or a separate light and USB solution like The PlugIII, I'm leaning to the separate as there's no real weight difference and less likely for two separate things to fail. Got a reply from Voltaic and their battery can accept multiple inputs just needs splicing into the wire. If I give them the details they're happy to make up the connection for me, rather good customer service there. That's looking positive I like the idea of being able to use the solar battery storage even without sunshine. Cameras aren't a concern as I'm not a picture taker so I don't need fancy kit or editing software etc. I'm not trying to create a blog or write a book, I'll probably keep a journal for my own reference but knowing me it could be rarely updated.
Sleeping - I think it will be a decent mat and a pillow, I sleep on my side and I'm large and I'm not good with too little sleep - so the extra weight/bulk would seem like a sensible tradeoff
Tires/tubes - I'm happy to take just one spare tire and two tubes, I'll be able to replace at will, I may go with something like the Marathon Tour, bit of tread not as heavy as the M+ and stronger sidewalls than the Supreme. But the spare would be a folding Supreme only for a get me to the next bike shop purpose. Anything more catastrophic and I can always get a taxi.
General kit/spares - I would plan on setting up a deal/account with an online shop so that I can easily order anything I need and it can be delivered to any destination, I believe SJSC are very good for this though not the cheapest. But that goes for everything, kit, bike, clothes, the lot - if I don't like it or it fails then swap it out, the bike can take derailleurs as well as rohloff so that's covered as well.
Breaks - yes it will be a holiday as well and I'll probably take a full week a few times and just play normal tourist - buy some clothes that I can mail home or give to a charity when I move on. Sounds extravagant but if you think about it for £1k I could probably do this 6 times and spend about £150 on clothes each time.
Camping - this will be the toughest part for me, not the sleeping etc but the actual wild camping bit, have to break down some internal barriers to feel comfortable doing it, but I'm sure I'll manage.
Destinations - I've decided I'll tackle Southern and Central first and leave Northern until the following year. I want to be a more seasoned traveller before I take on more severe conditions. I figure if it gets too hot then I'll just travel less and holiday more on those days/weeks.
Budget - I reckon if I allow £100 per day then that should cover most eventualities.