There are so many guides on how to get this avatar. But most of the guides I've seen tell you to buy items worth 3mil+ or more to get the avatar. That really isn't necessary as there are ways around this.
I've noticed alot of people on the neoboards who seem to be a bit dimwitted in the inventory department. Still asking how is it possible to have more than 50 items in your inventory.
1. Buy 50 of the item.
2. Place it in your SDB.
3. Buy the remaining items needed.
4. Remove the items you previously placed in SDB back to your inventory.
If you use a method that requires more than 50 items to be placed in your inventory I would suggest you using a (you need an account to see links) "Pant Devil Attractor". These are not high in price, they cost about 1.5k at the most.
If you know of anymore of the cheaper items that can be used but aren't listed in Bounty's or this thread, please post them. I will edit this thread and give you credit for supplying the information.
Note: I've used the Scroll of Dark Novas & Obsidian Daggers way of unlocking myself on previously used neopets accounts.
I personally used 12(6?) sand snowballs because they're est priced at 40k each. you can pick them up for less than 100 each, usually. I got mine for about 50 each, meaning I paid 6k.