Is there anything special that needs to happen to refresh their inventories? I have not been able to get it to happen, though Nulb/Hommlet merchants refresh just fine. On the plus side, finally made it to the Verbobonc content! The last three times I've tried playing through, I've gotten too distracted by modding to finish the new stuff. This time, for sure!
I think they're generally on weekly refresh cycles. Also, you may want to check out my fix so two of them purchase things at the correct rate (in the modding forum).
Yeah, I've tried months, and nothing. At least for Archer's Eye and Bazaar of the Bizarre. Ah, well; I'll just console in what I need.