Data Entry - Postal Addresses

I have 179 full UK postcodes with the number of each premise at each postcode. I need someone to search each postcode using whataddress.co.uk and RM Postcode Finder and collate all the addresses at each postcode into a Microsoft Excel Spreadsheet. There are 2,094 addresses. Bare in mind for each postcode it will be one address with varying numbers of house names so should not be a difficult task. Expect it to take someone who has done this type of admin work before no more than 1 1/2 days. I would like it done correctly rather than quickly. It will be run through Royal Mails PAF file to check accuracy.