Amazon optimising. Looking for an Amazon specialist. Ongoing work !

Hi, we are an online seller mainly selling on [login to view URL] but just started with [login to view URL] and we have received a few orders. I don't understand the Amazon system too well (I understand Ebay well) - but all of our products are listed (around 120) on [login to view URL] On [login to view URL], es, .it etc only 20 or so are listed on each and it seems there is no shipping charges too (we give free shipping to UK) One issue that I have realised, we bought a list of new EAN codes - so every item has a brand new EAN code and I think that may cause problems ? This project is to go through our Amazon listings fix all issues, add extra photos using google (only one photo per listing is currently shown) change the EAN code to match other sellers - ensure correct settings and to make sure all items are listed on all amazon platforms .fr etc etc. so we have the best chance of selling on Amazon ! This project initially is to start with a few hours work for you to go through our [login to view URL] listings and then tell me what you need to do and agree price for the following work. I am looking to award this project now - you must have experience with Amazon. Generally I do not award to bidders who say "I can do the work" I only award to bidders who take the time to put their proposal clearly in the price. Please quote if you can start this work now. Thanks - Simon