you all kinda over complacated it,i just find speneding money on fl/S and guile boots is money that could be spent better,first take out his minions, exit and heal yourself then renter,cast scilence on him untill he is afficted(this stops cry for help and fira,sadly it does not stop renew)if there are any normal bombs left take them out and then buff one of your party with bravery+beserk+haste and bubble if you have it.when you get him down to about half health he will run around like he is casting cry for help but he is unable so he just floats around now you hit him with your quickinings,dont be worried about time because it will take him about ten seconds after he starts fleeing to cast renew,maybe its just me but that 4000+gil is quite alot to me maybe because i never bother to train and just fight marks and advance trough the story

might be best to follow shivas advice but i doubt anybody from lvl30-35 will be able to afford the Nihopalaoa