Update e-commerce site

To those who may be interested, I have an online shop selling ladies' fashion, and would like to have help in the updating of products, information on the site, as well as monitoring stock. The assignment is fairly simple, and is only once a week. The assignment scope is as follows: 1) Add products on a weekly basis once a week, which includes -Product name/ description/ price -Categorize new products according to type and brands -Download images from the website links given ( I will provide), size them accordingly (so that they fit the stipluated size) and upload them on my site, adding captions of colour/style on each image -Add product options such as colour and size for customers to choose 2) Occasionally I will need to add help to promotions, or discount coupons, or announcements. It is a fairly simple assignment. Of course, if there are a lot more products than usual, or more things to be done, I'm willing to pay more and this amount can be negotiated. My budget is $40 to $50 (SGD) per month (4 updates in a month)