I guess it's not a very good idea then. I don't want to get into any trouble myself as it becomes very difficult to prove things once everything gets complicated.
I think the idea is trap, but that's fine if the OP really wants to do it. It's a difficult operation, but it may be worth it. Your success rate depends only on how you trick the seller and collect data from all accounts, but I think now they move more after the previous incident. Good luck [if OP really want to do it]. I just don't want to waste my time talking to scammers.
Thank you for the link to that thread, I believe I was inactive during that time, so I wasn't aware it was already tried once or twice. And I think I will need to rethink about this and see if I can go with it. Although I feel that it is worth a shot but after reading that thread and all responses. in this thread and in that as well, I will need to think it through.