Thanks, like I said I'll make sure the tyres and brakes are in good order, I'll also carry a few spares like a clutch cable and basic tools, tyre plug kit and small compressor etc.
I forgot I fitted a new front sprocket after about 12,500 miles on this set of chain and sprockets so that might extend the life of this set a bit more, the teeth look fine and not getting hooked. A new set isn't that expensive though and I might replace them just in case before I go.
I think I'm more worried about the shock if anything, I rarely ride 2 up but the Mrs intends to maybe fly out and join me to tour for a week, so the bike will be more loaded than usual for a while with the extra luggage and being 2 up.
Last thing I want is for the shock to collapse in the middle of nowhere. Looking at those YSS shocks on ebay, probably not the best but better than the stocker with 50 k miles on it anyway I'd imagine.
Thing about getting the valves checked is I'd like to see it actually being done as I don't trust bike shops to be honest. If I keep the bike much longer I'll have to get it done though at some stage.