I think that there's different styles between the s2 and the s2fl cars, and therefore I am limiting myself to looking at the s2fl ones. I think those ones are s2 non facelift.
The part numbers help -
82349261 is the right
82349262 is the left
Mark's website says hes a left one, so that's that sorted
The search for the right one has led me to a used one on ebay in the US, and one for sale at a shop in the netherlands.. we shall see how I go.
I have also discovered that my pristine new old stock grille badge is for a different grille.. maybe an s1 one? it's a push in fitment with tabs rather than two bolts. In the meantime, I have the one I pictured on this thread after tidying it up. I put it somewhere safe.. very safe. so safe I can't find it yet

Rain has stopped play so after securing the rear windows properly (ie screwing in the latches), that's it for today.
My search for where water is getting into the cabin remains fruitless. Tops of the wings look fine, but I've not given it a more concerted effort.
Also, I said the wipers weren't in .. based off me having a complete linkage and motor in the garage that came back with the car. Nope.. there's one in the car too. To be resolved...
Last bit, car is now not starting. could just be the battery getting tired, but the new fuel filter looks dry as a bone. I probably put it in the wrong way round or something daft.