Hunting for Hidden Potential Equips

Does anyone have any tips or preferred areas to look for Pirate overalls (70 or 80) and Thief tops/bottoms (also preferably level 70 or 80)? Maybe a monster drops them more often than another? I tried looking at numerous places and a couple just aren't yielding me the results I'm hoping for, most of the time I don't even get the drops I'm looking for, even on 2x or 4x.

But yeah, I'm good on common Earrings and what not, maybe I just gotta get lucky--but I figured I'd ask and hope that other people who were hunting the same found a spot that was mighty giving for specific equips.

http://www.southperry.net/showthread.php?t=28251 and http://global.hidden-street.net/ are your friends. Just search for the equip you want and go to the various mobs.