https://www.ebay.co.uk/itm/264867437008
Second hand but at that cost and condition I just couldn't resist - even factoring in VAT, it'll work out to be about half the price of a new set.
Still a big hole in the wallet, so I'll call this my xmas present
I'll need to remove the carb heater circuit, so I'm just going to replace the whole oil cooler system with one from a 749/999 - just looking for a good deal on a cooler and the valve cover with a mount.