Might not do this after all, since it's sort of a redundant second layer of randomization. But then again, there is some value in having each fenced item basically become a lottery ticket that you have to redeem at the Thieves' Guild.
Not convinced that this makes the randomizer more interesting. Consider that we don't randomize component rewards from the Healer, and I think it's for similar reasons.
Might not do this after all, since it's sort of a redundant second layer of randomization. But then again, there is some value in having each fenced item basically become a lottery ticket that you have to redeem at the Thieves' Guild.
More thinking required!