Hey there, just read your message and heres some help. Keep your item in your bag and do not equip it. Once it is enchanted keep it in your bags. Next, it is a good idea to put all armour in your bank (including armour in your bag - except your pants). This way you won't have to pay for repair. Next step is to go and die. Instead of running to your corpse. *Ressurect at the spirit healer.* Thats important because when you do that, all armour on you AND in your bag takes damage. You should only need to do this 4 or 5 times for the item to have 0 durability. The next step is to relog. (exit wow and start back up again). When you log back to your main, the stats and the enchant will not show on the pants. Don't worry. As you will notice, the item will no longer be soulbound. Send this to your twink or alt. Log your alt and take this out of the mail. It will look like it has the enchant on in the mail but when you take it out it will look like it hasn't. Once the item is in your bag, relog, equip it and repair. WALA! You now have the enchant on your pants =]
You may also do this with the Wintersgrasp Head enchants.
Sorry for the long message - just wanted to make sure you understood.
Happy owning! - Curseya - Bloodhoof - EU