You could try starting in
this thread for Level 1 to 9 items and Level 10 to 19 items...
The level 1 to 9 items have ducked under 100 each and there is not that much armory stock in the level 10 to 19 range...
I would wait on stocking up the level 20 and up items in the armory until more of our active player base gets to those levels... The other option is coordinate buying, donating, and giving a level 20+ item in one fell swoop...
Prof. Maple