Monotuous jobs

I am currently working on a larger website, where I need to move a lot of pictures, which are made in Lytebox, to a module position. There are over 300 images that need to be changed to accommodate this, you have to know how to make module position for single products and align them probably according to my intensions. There will also be other things to correct, like insertion of horizontal rulers between products etc. I am looking for an hourly wage, since I can not give a precise assumption on how long this will take. But to get bids starting I would say that it is around 40 hours, maybe more. A detailed plan and a view of the website can be sent if interested.