The figures 170to5 posted are right on the money - I know from 14 years of paying exactly those amounts for a modest three bed semi and two kids' school fees. British state education is abysmal, the worst in Europe and possible the developed world. ANyone going back there owes it to their kids to send them to a decent, if modest, public school if they don't have access to an old grammar school.
Watch out with RYR contracts. They vary significantly from base to base, and you could be relocated at the drop of a hat. Check the small print very carefully.