Bulospoint,
My 2 cents,
if these group were double crossed more than once, why sudden a change of heart to your group? I do believe that you and your group are really transparent and true in dealing to them, but are they? considering the fact that they have "crossed" by other buyers. Are they not capitalizing your transparency showing your good heart to them?
Sometimes, reverse psychology is the most easiest way of convincing people. anyway, it's your call, what we are imparting here are all precautions.
BTW,Trend here in Phil. nowadays is man can be hurt/swindled/killed by mere 2000 pesos or less. And you are dealing with 30 million of hard cash. And 10% of this amount is 3 M, which more than enough for a fly by night swindlers/sindicates.
Angel_09