Photography in Central London

Simple photography task across central London (Zone-1) across LU stations and High Street locations. Captured images required for visual reference purposes only, so need to be clearly framed and pin-sharp focus but don't require any lighting or staging. Would suit someone experienced with compact camera rather than DSLR or like. Real 'walk and shoot' task.
Task based on 4 hours weekly for the next six weeks. Complete flexibility for timings (days of week and/or times of day).
Budget detailed based on each weekly x 4 hours task. Please give details of photo experience and web URL for examples of images.