Best 8 person hardcore ironman party...

[Any1]

For pure physical damage:

Paladin w/ Concentration + Might Merc
Paladin w/ Fanat (maybe two because of range)
Werewolf w/ HoW
Necro w/ Amp Damage
Amazon w/ Strafe and/or Multi

You don't really need HP boost skills, since everything will melt away with one blow.

For Pure elemental damage:

Paladin w/ Conviction
Necro w/ Lower Resists
Sorc w/ FW, Meteor, and FM
Sorc w/ Nova, TS, and LM
Sorc w/ FO, Blizzard, and CM
Trap Assassin

Again HP boost is really not necessary.