Here is a link to check out:
http://www.nostalgiaair.org/Resources/330/M0013330.htm
Here you can download schematics which also include a dial stringing diagram. Without it, it can be hard to tell how the string was supposed to go. You can buy regular dial string via mailorder. You could probably make do with kite string. Probably uses a small spring or two where it connects to the tuner, they may still be there? As for the pointer, someone may have one they can offer, or you could make up something with some ingenuity.
The big red and orange capacitors underneath are your mortal enemy! They gotta go!