Nice. Certainly a good setting for a group of PCs. I spent a week in Cornwall this summer touring around and stayed near Bodmin so the places all fit for me too.
One option you may consider is to add one or two 'heavies' for Rose (or thorns
). I would imagine he would have picked up some allies before he gathered the initial 50 at Bath. Possibly he met a disgruntled tough NCO on charges in military prison whilst he was awaiting the verdict on his Belfast incident? After contacting the NCO he linked up with a wily conman in the Home Service Force. With these 2 behind each shoulder he has more clout while building and someone to delegate to who he can ?trust.