I have a Stronglight 86bcd 36t chainring with a little life left in it, £5 posted? I also have a matching alloy chainguard also in 86bcd which fits up to 44t ring (it was previously a 50t ring!), £7.50 posted
I have a 32t unused, 36t lightly used, 42t lightly used, 52t been used hard (All Stronglight) and a chainset with used cranks but brand new 52/42t brand new rings.
Let me know if any use.
Currently on ebay but I can cut the auction early.