Record Collector has pieces on collectable British jazz in their February and March issues. These are really teasers, and I find a lot of interesting stuff of course (John Surman, Ian Carr, Graham Collier, Mike Westbrook etc) , but I will not even try to go hunting for vinyl copies of some of these albums. Do you want Michael Garrick Trio´s 10" "Moonscape"? £ 1300 thank you.
I have got the two albums listed here, where Robert Wyatt´s playing:
Centipede: "Septober energy" (RCA Neon 1971) (£ 60 , first pressing, £ 20 second pressing).
Keith Tippet Group: "Dedicated to you, But you weren´t listening" (Vertigo 1971) (£ 75).