Here is a pic of the retaining clip used to hold the mesh to the grill. Part number 192366-9 Item 106 on page 380-381 of the parts catalogue
Same clip is used to retain the cover for the dash
I have plenty of these clips, which are in fact also obtainable from Bresco. It's the other clip, item 105 Anchorage 665287-9 that I need.
I've emailed Bresco
Russ