I look after 20+ primary schools in Essex, ranging from 2 Servers (Admin & Curriculum) and 25 pcs\laptops up to over 200 laptops\pcs\netbooks etc. The MOST I do is 8 hours a week. Most of the Schools I go to is for 4 hours per FORTNIGHT. OK, Most of their networks are the same (Designed & built by me) so I know them inside out and I also have remote access to their servers. Therefore it can be done. However I do charge more than £10 p/h but the Schools do get my remote support generally for free for a quick fix.
im paid less then a tenner an hour and i get access the sever here.
If that had been in my area and id read this when actually posted id have enquired.