Use this mod: http://www.nexusmods.com/skyrim/mods/64905
Basically it lets you get EVERY item added from a mods over a virtual chest so you will never have to fiddle again with player.additem again, I bet it comes really handy for cataloging LOTD and displayable items, this guy showcases it pretty well: https://www.youtube.com/watch?v=-uMK0KUtVHg