How to sell my copy EFILive?

I may be getting out of tuning and would like to sell my V1 Commercial copy of EFILive. How do I go about doing this? It's only been used on one vehicle.

I have most if not all of the original paperwork, CD, and interface cable. If I send these things to the buyer is that all they need? Will they be able to use it?

Thanks.

how much? and has it been upgraded to v2?