This sounds pretty similar to the Move Files & Copy Files destinations that ship with Dropzone. Have you looked at those?
If the key element is needing to rename the files before moving/copying then this is certainly possible but will require some changes to these destinations. Right click on the Dropzone app bundle then do 'Show Package Contents' and navigate into Contents/Resources/Destination Scripts and have a look at the Move Files.dropzone destination in a text editor for a starting point.
Also, see the API documentation at http://aptonic.com/api