The end cap for the grip is $5
I don't think you can just buy the shock cover by itself.
Footpegs are easily replaceable.
Now what do you mean "bent to hell" ?
folded over to make a nice U ? I would call that bent to hell.
or just bent... 15° 30° 45° ? eh... flesh wound, where's me hammer.
Is the end of the peg all ground up?
Gravel may scratch it up, but it takes pavement to grind it up.
Possible damage would be a bent mounting bolts.
Personally haven't found it to be deal breaker, just something to knock down the price with.
Of course, it would be something else if it had been crashed into something.