iPad's don't come cheap so don't expect to get one for the "cheapest price"...
However you could try your hands at the link listed below. iPad giveaway, (I am only suggesting them because I've actually got free stuff from them before), you have to fill out a short offer and participate in a few surveys and you'll surely get your prize.
you can find an ipad 2 covers at best buy
For a used one, try E-bay for a new one Apple don't have any in stock. That means there are suppliers of the IPad 2 are charging premium price for the IPad 2.
Yup
The original iPad is 13.4mm. The new iPad 2 is 8.8mm, so it is much thinner.
Yes, the new iPad still is usable with the Smart Cover.
The original iPad, just know as the iPad was first, then came the iPad 2. The latest model is known as New iPad. (not iPad 3 or iPad HD or ????).
the new ipad
No, because the new iPad has magnets and the older one doesn't.
WALMART
same as the ipad 2
no, only the New iPad (3rd generation) does.
Yes, there the same size!