Ok, be honest with yourself. Do you like fixing stuff? Are you confident you could figure stuff out? Will you be happy to play it in the condition it is?
If it is the title you want... offer a price you'd be comfortable with but be prepared to walk away. If you're ok with losing a couple hundred bucks if you wind up over your head it might be worth a shot.
Take a look at some prices of repair parts for the problems you see. That display, for example, appears to be in the $200 range (a pinscore one... not sure if there are cheaper).