8 1/4 Sure Grip Carrier

All,
I would like to sell this, but I need to know the follow questions, or else I'll scrap it.
I've been told it needs to be rebuilt? I also have been told you can't find the correct parts for it? Also, what's a reasonable price if someone could rebuild?
Please see attached pictures a tell me if it is possible to rebuild this. 8 1/4 Sure Grip Carrier.

Thanks in advance,

Woody