Well it changed as I learned more but also because people would say this or that would not be possible with what I had.You have options, but you're kind of confusing us a bit because at first you want it to be moved if necessary, then you suggest stuff that's really substantial....and expensive either in materials or £££ or enormous labour.
Ideally I would make out of what I have already.
I am not that keen on a tarp skinned shelter other than to work in. Doesn't seem to cosy to me.
I like the idea of a mud hut due to abundance.
Maybe wood and mud combo?
Also mine is south facing though of course boggy nonetheless as I have stated. It is not totally boggy throughout though. There are patches with lots of rushes, probably the majoriy being somewhat waterlogged, but in one corner, where the little woodland is, and generally the western side, it seems pretty dry...ish. Not boggy to walk on anyway, unlike other parts.
Oh btw something that I have not figured out is on the wet parts where water pools there is some rainbow coloured water like bits of petrol in it. What could that be? Very much doubt it is actual petrol as above is just an empty sheep field and beyond that is the top of the valley and just woodland.