add on vbulletin

Hello I am looking for some one thay can make a easy to install add on for vbulletin the add on shut be for banner adds people click on advertisement link and go to a seperated page here they see what spases are free ( rotating banner place or fixt 1 banner) select what banner and place where select date from to and and prize per 30 days ( 1 month) then add link where it whut go to afther clcik pay paypal and afther this is done sytem shows banner and stops on exact date as paid for 1. upload add on and ready 2. a admin part ( seperated if needed) admin can set ( or conf file) prizes for all banner sizes for 1-2-3-4-5-6-7-8-9-10-11-12 months 3. banner shows on selected place