What you're trying to do doesn't make much sense... If you want to mf, then just mf with a proper mf character. Sorceress with only rare/crafted items will be a terrible mf character... low mf%, low fcr and so on... I can't see much fun in this, you're just lowering your mf efficiency for no reason. If you want to challenge yourself for fun, then just do a regular wt and add whatever restrictions you like. What's the point of turning the magic finding into a chore?