Looking at March 16 1989 Cycling now. Mostly advertised as Groupsets, not a lot of individual pricing but here are some -
Direct Discount, Orpington
Athena Chainset - £55.95
Athena Brakeset - £55.95
Paul Milnes, Bradford
Athena Chainset - £59.95
Athena Brakeset - £59.95
Chorus Chainset - £89.95
Chorus Brakeset - £89.95
All plus postage.
In the March 30 edition -
Parkers,
Delta C-Record Brakes - £197.35
Croce D'Aune Deltas - £137.50
Plenty more mags to go at. Is there anything specific you're looking for?