As far as wages every school is different and every teacher is different depending on experience and qualifications. I don’t know how easy it is to get a job in the high school- I’m in the kindergarten (just went on maternity leave now actually).
There are a few schools in Manchester more tashbar type. For the girls, similar schools seem to be tiferes and bais chinuch or bnos. Don’t really know much about boys primary along those lines apart from my nephew being in tashbar. I actually went to Broughton Jewish but I’m guessing you don’t want that if you’re more the cheder type.
In Gateshead the newer boys primary school is also more cheder style.