HI guys here is a bit of an update as promised...

Ok, after the mylar glue clean up, i started on the lower section with the Magic Eraser and isopropyl alcohol on the areas of ball swirl, followed by a scrub with Prepsol and rag. After the mylar and glue removal, plus this work its starting to look better already with nice n bright colours!

First pic is of the right hand side just above the right flipper area, before cleaning, the rest are of the areas already cleaned up, didnt get before pics of the left side and outhole area