If you go for a live in au pair - it is much more affordable. They generally are limited to 20 or so hours a week, or, you can opt to pay more for more hours. We have paid from 60 - 90pounds per week for our au pairs, according to our needs, etc. Our hours have been fairly minimal. Plus food. Room, location, etc make little difference as to the pay, but, a good person will expect a decent room, wifi access, and a good degree of personal freedom and space. A bicycle is also handy.