What an amazing resource this forum is! I really appreciate all the advice. 

I think you've all given me enough motivation to give the shop-out a go myself. Re: johnwartjr questions - the machine is Atari Superman which has a relatively simple playfield, single layer of parts and single playfield. Re: ddstoys - You're spot on about the similarities to Middle Earth.

I've been able to find most parts on pinballspareparts apart from 15 amp fuses. Regarding the coil sleeves, are they standard for all coil types? I've noticed that there are different sizes but the parts manual doesn't refer to a size.

Parts I think I'll need include:
- Complete set of new rubbers
- 100x #47 globes
- 15, 7, 10, 1 amp fuses
- New ball
- Novus 2 cleaner
- Coil sleeves? Still not sure exactly what these are 
- Red star posts - I haven't found any superman specific ones but I have found some from Williams 1-1/16". Anyone know if they are the same?

I still haven't been able to track down the Audio issue. I've checked all connections and they seem OK. Maybe when I replace the fuses I'll have some joy.

Cheers