I think a fair degree of control can be had just by severely limiting wealth until 10th level. Melee classes are obviously gimped but even wizards could be since no/low wealth means no/low scrolls which means they have to get by with the two new spells per level in the wpellbook. This would limit their choices considerably. Druid and Cleric still crush everything even more than usual since they are not noticably weaker and everything else is...