I'm pretty sure there's companies out there doing reproduction decals, and aftermarket designs. You could try fowler's parts for some original ones but they might be discontinued
Well I reckon you NEED a new bike, so you can be out of the house while all this work is being done!!
Seriously complaining about Imperial measurements? Everything you buy in metric is an equivalent anyway!!
The way it reads to me is that they don't take bookings that big through that website. It says on site information that rallies are welcome so I'll give them a bell if that's where we want to go and have a word.
I'm flexible with dates with it being so nearby (if we settle on the peak district).
I'm not aware of any biker camping per se but I'll see what I can find. There's always my back garden