Just thought of something else... another benefit of the party mentioned by me above would be that with xp being gained so fast, your mages will be way ahead with levels than spells. If both are triple class they won't go up as fast, and you'll have scrolls for them.
So if I may suggest something how about: 2x party 2 druids, 2 clerics, 2 mages:
2 druids:
F/D
F/D
(1 multi 1 dual to compare)
2 clerics:
F/C
C/R
(one could be dual, or you can have 2 F/C one dual one multi, or 2 C/R one dual one multi)
2 mages (triple)
F/M/T
F/M/C
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ZFR
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