Wordpress + Classipress + Slider Ultimate + Paypal

I use Classipress and Slider Ultimate for a free classify ads Website where user are charged if they want their ads featured in the Homepage slider. 3 tasks : #1 - Right now once the ads is posted, it is impossible to upgrade it to the slider. In the dashboard, I need you to add an option to 'level up' any ads to the slider ( and be redirected to Paypal after this). We will put a little icon beside each ads in the user dashboard. #2 - My user pay 10$ for 15 days to have the ads in the slider. The day before the end of this 15 days, I need you to code an automatic send e-mail with Paypal invoice to the user. If the user renew, it automatically renew the ads in the slider for 15 days. If the user do not renew, it remove the ads from the slider automatically. #3 - When user submit an ads for feature it in the slider, give him the possibility to: 1-choose a specific image from the various one he uploaded 2-crop and resize the image to the right slider size. *-The cropped image must be display only in the slider. The original image will be show in the ads page. ---- You will have to work on your own server or in a sub-folder website copy. Once everything have been tested, you will need to give me the instructions to integrate your work to my Website.