Thanks for your comments there, fellas. Appreciate it.
I wasn't aware that it was legal - let alone encouraged - to camp wild in Scotland, as it happens my in-laws are from Ayrshire, but haven't really explored that opportunity yet.
I'm based in East Yorkshire, Hull to be exact, unable to drive, and so am totally dependent on public transport or friends to give me a lift places, which is why when you've got something a little more ambitious in mind then your local country paths, camping is put on the menu.
We do follow the philosophy of settle late / leave early, taking all rubbish with us (except poo, sorry but that stays!
) Never yet have we been asked to move on, so far we have remained fairly discreet, though I have to say I have given up asking for permission - there's something about that look of horror that sweeps across a farmer's face that puts me off
Some interesting ideas, so thanks again chaps!