ARA still exists, it has an interesting heritage:
https://www.ara.co.uk/about-ara/our-heritage/
I finished Mike Bannister's 'Concorde' recently. It's a good read and certainly provides a very clear insight into what happened to the Air France Concorde at Gonesse. To get back on track a bit.... I also really enjoyed '
Fall Out Roman Catholics and Jews' by Tony Haig-Thomas, and '
Lightnings to Spitfires' by Clive Rowley. Perhaps they have been mentioned before...