create Amazon MWS / API based APP to get Weight and Manufactuer w/Output file option

we have 100.000+ ASIN list we need to get their Shipping Weight (pounds) and Manufacturer name, this data must be outputted in unicode .CSV file separated by tab (attached example) you must develop application to make this process avoiding throttling mws with auto resume feature option in case connections breaks or anything that could harm the process. - application must allow to enter asin list by file. - for the output file (unicode csv): if api don't return any weight must insert 0, if no manufacturer name must insert N/A - weight must be in pounds, be careful with ounces values, they might need to be converted before inserting - 1 week deadline for complete project including tests - zero feedback freelancers please avoid bidding [ IMPORTANT ] we won't share our keys to test, you must use your own and provide working demo in demo site before we release any milestone, if your not agree with this, avoid bidding, thanks.