[Kotetsu]

If you give up on a dream so easily, of course you won't make it.
Work hard, earn some money and publish it yourself. Publishing a book is NOT more expensive than a car xP

Okay, copied:

Eragon = Luke
A farm boy who grew up at his uncle's place somewhere in the middle of nowehere because his parents have "mysteriously" disappeared/are dead.

Brom = Obi-Wan
A teacher / friend of the farm boy's father who randomly appears, saves the farm boy from the Empire and takes him to more or less save the world.

Magic = The Force
Okay, that is easy.

Dragon = Lightsaber
The new "weapon".

Murtagh = Leia (lol)
The person who meets the farm boy and helps him on his quest to fight the Empire. Lost sibling with an evil father.

The Empire = The Empire (duh xD)

Galbatorix = The Emperor

Morzan = Darth Vader / Anakin
The guy who became a traitor and killed the other members of his order.

The Varden = The Rebel Alliance
The guys who fight the Empire and want the farm boy to help them.

Hmmmm... no, nothing copied except for everything. XD
Star Wars is sci-fi / FANTASY, so you just replace the Galaxy with Alagaesia and there you go.