Ok, so after many troubles, I found what I'm after, so I'll leave a post here for others to know in future.
My local dealer can order the parts in!
I contacted alfaworkshop.co.uk with my query, they got back to me within 20 minutes with the part number, although I got the impression they couldnt/wouldn't supply the item after no response for 3 days when I asked.
So I googled the part number, came up with 7zap.com (mental website. Has pretty much every part number for everything ever.) So found what I was after on there, including part numbers for the screws, spacers etc...
Went down to my local dealer, a MotorVogue, and spoke to the parts guy about what I was after and he seemed unsure. Anyway, disappeared for 10 minutes with the part numbers, then said it's on their system and can have it delivered by next week!
Not cheap though. £103 for the bracket and all fittings incl. vat.
(But with the trouble I had finding this, I'm just going for it)
[Edit] as I was writing this, Alfa Workshop got back to me suggesting I go to a dealer
Last edited by C0NNII3KINS; 2 Weeks Ago at 10:49.