I noticed on ebay, silverball has a clear playfield cover for the lower playfield. May be worth looking at

Thanks PG.

Not needed as Silverball gave me a brand new one (identical) with mine as there was a tiny crack in the corner.  I've got new spacers for it (arrived today) and the bolts for it are on their 20th hr of tumbling!

But thanks heaps for looking out for parts.  Just a NOS backglass is the last thing on my wishlist for it (oh, and NOS playfields)....