Looks like a good strategy. Question is, who is going lead this case? Should the complaint be made in Italy, Hong Kong or both? Do we need somebody on the ground to present these complaints?
Im no expert in this area but i think we should start with the Italian authorities since these guys are from Italy and there is an Italian lawyer who can set us up with a Italian criminal lawyer who can prepare the compliant and submit it the authorities.
As for the payment of this I suggest the that lawyer sets up a BTC donation address and a estimate of the cost and when there is sufficient funds to proceed he will make the paper work and submit the compliant to the authorities. And for the personal information that is needed I suggest emailing the information directly to the criminal lawyer who is handling the case.
And for taking the lead of this I suggest someone from lcsh group who has some more credibility with the community as Im just a newbie. This is just my suggestion and we can ask the lawyer what he thinks of this approach.