Small update, I lightly cleaned the backglass where I could then just sealed it with Krylon Triple Thick.  I wasn't able to clean it quite as well as I would have liked as some bits where just too delicate to even attempt to clean.

I then used a blade to scrape off the blue film on the score panel windows, since the displays had obviously rested against them and burnt some of it off.  I then installed some new blue films.

I also put new decals on the shooter lane and apron since the old one was scratched and smudged.  I sanded them back first then resprayed them and then put the decal on.  I did the shooter lane one first which turned out fine.  I then did the apron and had a problem - it bubbled after about the 3rd or 4th day????

It obviously goes on wet (water and a bit of detergent) then I squeeze as much out as possible once the decal is in place then it gradually dries.  The strange thing was for the first 2-3 days you could see the milky water gradually drying and disappearing from under the decal (in the same way as when I did the shooter lane one), but then suddenly I checked it about 3 or 4 days after application and those ripples appeared.  I don't know if a change in temp might have caused it, the day prior was VERY hot.  Obviously I will buy a new one and try it again but I don't want the same thing to happen again.  Any thoughts?  Was it maybe too wet under there??

As for the playfield, I am still SLOWLY touching that doing one colour every week or so.  Having 2 kids (age 1 and 3) means I get about 1-2 hours each weekend only to work on the pinny.  I gotta say I wish I could just buy a new playfield and use that instead!!!!