Try and find a tailoring vendor in particular (with sewing kits and patterns), they are more likely to have patchwork and tattered pieces already made by passing players if you have a bit of spare cash from selling rusty weapons etc etc.
Also a quick note, though its generally common knowledge - you'll need ruined cat pelts to make medium armor as an erudite, bear pelts are for the "large and in charge" and wolf pelts are for the scrawny gnome/wood-dark elf types
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