Headlight lens

I need to replace the driver's side headlight lens on my 96 Lumina sedan. Is it possible to get the lens without purchasing the entire headlight assembly? It appears that the lens simply attaches to the assembly with three clips on top and a few on the bottom.

I am assuming that replacing the lens or the entire assembly will not be difficult. Am I correct?

it shouldnt be but i had a problem when i broke my head light lens and it took me forever to get it in right and it is still some what off center but i hope you have better luck then i do