I would use a Visio or other graphical front end protocol which I have used in the past to incorporate automated data - Excel, Doors, any number of programs can work for the front end also, but Visio or Excel are nice as they are standard MS Office sw and easily compatible across most client OS / environments - and then apply either an SQL or custom API automation protocol for the middle piece, running to your back-end excel sheet or whatever db you wish. I added in time cushion but that is only to account for other projects and juggling them. Your work may be able to be completed in just 2 to 3 days. My company has often done work in the UK and we actually specialize in higher-end software and innovation work, as well as creative design. Cheers!