CS Cart Addon required for Product Options

We have website for karaoke music on CS Cart V3. We want following modification for CS Cart for the products Product should have different options as below: i) MP3 Karaoke format (one or more file is delivered electronically to the customer) , Cost - $XX ii)MP3 format file with Male vocal ((one or more file is delivered electronically to the customer), cost $xy iii) MP3 format file with Female vocal ((one or more file is delivered electronically to the customer), cost $xZ iv) Video Karaoke format ((one or more file is delivered electronically to the customer) , Cost - $YY v)Video Karaoke format file with Male vocal ((one or more file is delivered electronically to the customer), cost $YX vi)Video Karaoke format file with Female vocal ((one or more file is delivered electronically to the customer), cost $YZ vii) ALL files can be delivered So for the above mentioned requirement we would like to have : a) either radio button option or checkbox option. If check box is used then only those file should get delivered to the customer for whom he has checked and paid the amount. c) In the above example we are considering total 7 product options. But this number can increase or decrease as per our requirement. d) There should be a Addon for this requirement which should be upgradable to all future versions of CS Cart. e) All the above product option (including product option cost, product option file etc.) should be importable/exportable through Import/Export facility.