Now I have your attention 
HELP! … I need a steering wheel centre fitting for my S2 (it holds the Lotus badge/horn push) it was O.K. but I dropped it and it shattered …doh! 
…anyone got a spare one for sale?
See wanted reply
I had the opposite problem where my centre push disintegrated and the surround was intact. As your centre is intact you could get a Triumph part from Canley Classics and swap the centre push. Check out this link … looks to be around ?18.
http://www.canleyclassics.com/catalog.asp?category=200208031936013385758377
Regards,
Jason & Roger, thanks for the replies and leads, I think I am sorted now due to a fellow forum member.
Thanks