Hi Peter
The ACOC at one stage had moulds to produce the rear plexiglass rear window / screen for both the Aceca and the Greyhound.
Suggest you contact Tony Michaels the ACOC Chairman and The AC Aceca Bristol Registrar, he should have details of who , when and where you can obtain both the front and rear screen.
If you dont have any joy contacy either John Lewis Ac Aceca registrar or Clive Bowyer the Acedes Spares Co-ordinator.
first port of call in UK Tony Michaels email tonmich2002 at yahoo dot co dot uk
Alternatively you could try contacting John Owen of AC Cars Malta, according to ACtion Magazine Dec 2007 he is the main contact ( The Only Contact ) for AC spares. tel +356 79 289 427
In USA.... Contact Jim Feldman and / or Ron Leonard, either of them should hopefully point you in the right direction.
Be interesting to see what response you get from all the above contacts, especially as Spares supply - suppliers is so topical with the ACOC at present. (re: Dec 2007 & Feb 2008 ACtion)
Gus Meyers in the States has recently restored his Aceca ( re this Forum over thepast 18 months) have you tried him ??
Keith