gumtree Ad poster

Hi, I require software to be created to automatically post gumtree ads on [url removed, login to view] 1) There should be a template where I can add, save and edit ads that are to be posted. 2) The programme should be able to auto-select the pre-specified Category for the product item and auto-input all data from the ads template including Title, Images, Description and Contact Details. 4) I want the ads to be automatically, repeatedly posted on gumtree website with the specified time interval. 5) I would also like the option for the existing ads to be deleted from publishing the new ads. My main category for posting ads will be under real estate category. I look forward to hearing from you.