Sage Bookkeeping

We are a young company that has been growing fast so there has been little or no time to date for bookkeeping. We are looking for somebody who can come to our premises and get our books in a nice, neat and tidy fashion. We have Sage Instant Accounts so somebody who can use this package and is based in West London (where we are) will be preferred. Regarding book entry there are roughly 10 months of accounts to get up to date/data entry - we have been using excel spreadsheets to date. Please note we have detailed analysis of all of our sales and payroll (we use payroll software) it is only on the purchase ledger where work is really required. Please reply giving details of experience and a rough estimate of cost.