Move Store data from mysql cart to Magento

Part 1: I have an oscommerce shop that i need to export customer info and customer logins and have it imported into a Magento database. I estimate about about 20-40k customer records. delivery within 2 days Part 2: I have a custom cart built on php and MySQL where i need to: - export 120k customer records and logins and import into Magento - export 1500 products with child options (clothing, shoes and accessory items with size or color options) and import into Magento. Completion within 5-8 days. Please list your experience with this type of data move as well as ask me any specific question to start a conversation regarding this project. I need this project to start asap. I will not respond to any generalized bids. I would like to know if you can confidently complete this job as well as start this ASAP. I am ready to award this to a candidate that is qualified, ready and can communicate well. I will entertain bids between $200-400.