Automatic flow xml import / prestashop 1.6

We look for a provider that can import an xml automatically flow (4 times / day) in a PrestaShop store to update the stock produced by size (variations) and maintaining a mapping of categories, brands, products description, prices ,. .. may have been manually changed since the soundtrack after the first import. The stream consists of about 500 products in this format <Product> <PRODUCT_CODE> XXCR6924 </ PRODUCT_CODE> <PRODUCT_PRICE> 61 </ PRODUCT_PRICE> <PRODUCT_NAME> Ralph Lauren T-Shirt </ PRODUCT_NAME> <GENDER> F </ GENDER> <TYPE> T-Shirt </ TYPE> <BRAND> Ralph Lauren </ BRAND> <B_XS> 0 </ B_XS> <B_S> 81 </ B_S> <B_M> 186 </ B_M> <B_L> 171 </ B_L> <B_XL> 183 </ B_XL> <B_2XL> 89 </ B_2XL> <B_3XL> 0 </ B_3XL> <B_4XL> 0 </ B_4XL> <B_5XL> 0 </ B_5XL> <Img_1> http: //urldufournisseur/images/product/[login to view URL] </ Img_1> <Img_2> http: //urldufournisseur/images/product/[login to view URL] </ Img_2> </ Product> It is a collaboration in the long term, so we are looking for a provider at favorable rates, offshore agreed with experience in import xml under PrestaShop website for sutilisant declensions and stock. To avoid wasting time in the selection we ask for PrestaShop achievements links in your responses / proposals on which you have practiced this type of import xml. We await your proposals.