Sadly with my odd playtime I just can,t raid and even grouping gear take me age to aquire. I know that a summoner would be able to farm for master spell really easely but what about wizards ? I know the class can solo from lvl 1 to 95 and max AA easely but what about plat faming for none raider ?
The best way to make money via farming is to solo epic raid named for fabled items, transmute them, and sell the manas on the broker. Some heroic zones can also yield good returns, but not nearly as much as raid content. Unfortunately, wizard is among the last classes in the game I'd choose for soloing epics, as they lack the survivability to handle the incoming damage long enough to burn them down.
Farming overland and certain under-utilized AS dungeon TOV shinies is the best way to make plat right now (at least for awhile) and can be done on any toon.