If you are buying it, nope. Point out the battery leakage, the old yellow cab cap and pay dirt for it.

If you plan on keeping it, look to see if it still has the black NiCad mounted on it (it probably does) and look around said battery for alkaline damage. If it is a mess, don't bother turning it on until its been repaired. If it looks clean, go for it, turn it on.

Then plan on doing ALL the mods (ground, VUK kicker, new yellow cap, etc,,,) to make to bulletproof.

And if the damage is minimal, Great Plains Electronics sells a repair kit that contains a few of the normally affected components, if you know how to properly run a soldering iron.