Zencart - upload from a file into mySQL db

Hi, this is NO longterm project - Budget for this programming work would be approx 250USD. Purpose of the project: I am looking for somebody who is able to program an easy and userfriendly upload facility from a modified file into a Zencart Webshop. Background info: I get a daily text file with some 35000 articles - out of them i only need 2000 which are important to me. Processing via Excel or Access.... 1) Macro which article groups can be deleted and what is left 2) Calculate net price + transport fee + handling fee + VAT to get a gross price. Can be done via formula. 3) Any coding language to upload or update (delete, insert, amend product) into Zencart. 4) Download function also from Zencart DB into Excel - for analyses. 5) Automatisation should be as much as possible. 6) Script/Macro should be userfriendly, easy to handly and possible for future changes. Only place bid if you are a)available, b)a real expert in this field and c)you could do it from A to Z. Implementation could be done in up to 3 weeks. Details will be provided later. Good luck