Just throwing another idea about Red Mage into the mix.

Base class something like Fencer (with Rapier, Epee, etc) for weapons. No shield
Fencer has no specific MP-using abilities, other than standard cross
Needs Thaumaturge 15 for soul crystal, with additional cross from Arcanist

Fencer (a DoW) uses STR for damage with light armor (like PUG)
Red Mage (a DoM) uses INT for damage with cloth armor (like THA)

L30 RDM ability would be a defense boost (Enstone/ self-Protect/Stoneskin)
Other job skills would be En-element named attacks as a third combo action (Enfire/Damage+, Enfrost/Slow, Enthunder/DOT, etc).