Access Queries

I have a database built in Access 2007. The database is made up of only 3 tables. In the main table we collect external data from our buyers. With the two internal databases we supply data we collect internally. We need to combine the data in very specific queries which we export into .xls spreadsheets to be used as order forms to our sellers. I need a few customized queries that will pull data from all 3 tables and put them in a specific order with specific outputs including calculations, date customization, etc. I’ve worked with other providers for this sort of work and I expect this to be about a 3 hour job. I will require a non-disclosure agreement.