Difficult to understand what you need. Is it the rivets shown in pic 1 on the Rates advert, or are there brackets attached to the diffuser in pic 4 that you don’t have.
If you go to the bottom of the page on the catcar link that TreborB posted there are various fixings listed. Are any of these the correct items.
Edited by ST56, 21 May 2020 - 09:58 PM.