About how much is a 1972 blazer worth
 

Hi all
my grandpa is giveing me a 1972 blazer and it needs alot of work
It needs just about everything from a drivetrain to body work
I am wondering if it would be worth getting it running and looking nice

Depends on how bad it is, and how much you like it. You can justify anything as being "worth it" if you like it enough.

You say it needs just about everything, any specific examples or pictures?

They are very desirable where I live. Strictly my opinion, but as long as it isn't severely rusted they are worth a new drivetrain, and lots of restoration time.