If you don't know how to model edit using hex editor and by editting itemcache use this :
http://www.mmowned.com/forums/model-...-changing.html (credit for this goes to "Teh Bacon"
Bon, the way I add SP, S4 gear or whatever I want to itemcache it's pretty simple.
Step 1. Go to Wowhead: Making load screens bearable since 2006. and search for the desired item.
Step 2. Once you find the desired item you will see "Link" in the upper-right corner of the screen, that's the ingame link.
Step 3. Copy that script ingame, after it shows click it and also use "ctrl + click" (dressing room).
Step 4.After the item shows and also shows in the dressing room with u` equipped with her, the item will appear in Itemcache next time you try to edit.
Enjoy, looking forward to answer questions and all
PS: If this doesn't solve it and some people will think it's hard, I`ll upload picture eventually.