Geodesic GeoClassAuctions Modification

I am using the latest version of Geodesic GeoClassAuctions on my site located at <[login to view URL]> I want the script modified so that customers can set their auction listings to autorenew. It should work like this. customers can specify their listings to autorenew until sold or specify a certain number of times to relist. a system default of 50 times should be set. the customer will be able to change this if they want. this setting should be an option on the auction listing process. So the customer will be able to check a box to automatically relist and then options to relist until the item is sold or relist a certain number of times with 50 times to be the system default and this can be edited by the customer. When the auction duration has expired, the script will then create a copy of the auction and relist it as a new auction. This will continue until the above option settings are met. Only experienced coders should apply. I want a professional job done and throughly tested to make sure it works as it should.