RedRussian;
My suggestion is:
1) Every participant attaches 1 EU trial account to his Bnet and creates a toon on the server you choose. I suggest lowpop RP server. This account will be a HK leecher to share HKs on BNet. This is a safe method to farm HKs with no threat to your main account.
2) We need one AoE guy (lvl 58 dk on fresh battlechest or SoR account are preferable) to kill all the trials. I can create a PQR profile for "smart aoe".
3) This method will award us 6400 HKs per hour. Everyone has 2 trials who rez every 45 seconds. 40 ppl in raid * 2 * (60*60)/45=6400, 6400*24=153600 HKs per 24 hrs.
4) After the farm is over everyone deletes their leeching toons to cover up the traces. For better security we can create new toons with old names on the same server. EU _ONLY