These should be considered "special abilities" not classes. Anyway, I think the same thing for classes would be a good idea.
Archer: Get's 10x more arrows/quarrels/slingbullets/rocks and 2x more slings, xbows, bows
Weaponsmith: Get's 2x more ingots, 2x more weapons and armor, 2x more prefix/suffix
Priest: Gets piety 2x faster, starts with more piety, prayers cost 1/2, piety=more damage,5x more healing books, 3x more other books
Paladin: Gets piety 2x faster, starts with more piety, prayers cost 1/2, 2x more books, gets more damage to opposite alignment?
Bard: Finds 2x more all items, finds more items with weird stats
Druid: Can choose to evade wilderness encounters, 2x PP and HP regen in the wilderness, finds 2x more books
These are just a few and very unbalanced