Clear shimano 6800 drive chain and cassette, saddles, campag bearings bb and wheels and brakes, zip stem

Clearing out quality items.
First up shimano 6800 drive chain. Lightly used drive chain professionally removed. I'll include chain which is not quite half worn according to my checker. However an ideal time to put a new chain on. 6800 short cage mech, 6800 11-28 cassette, (chain) r6800 semi compact chainrings 52/36 fit to compact chainset. Not sure what the going rate is but £95 posted seems a good offer looking on eBay.
Shimano 11-28 cassette on a set of lightly used wheels I bought. I'm thinking it's 105 clean condition. £25 posted.
Zipp service corsa 120mm stem. Clean used condition bolts showing some rust. Stem minor marks nothing major £20 posted.
Campagnolo
Ultra torque bottom bracket bearings brand new. £18 posted
Campag SH 100 wheel bearings again brand new cost £85! £55 posted.
Campag veloce brakes bought 2nd hand never used. Clean condition £25 posted.
Saddles.
Old romin bought off here repaired but never tested. Think it'll work fine on a turbo but can't garanuntee! £8 posted.
Prologo removed from decent mtb. Damage and some marks but life left £12 posted.
Selle italia mono link saddle crazy light, damage to noise repaired. Some scuffs loads of life £15 posted.
Any questions please ask. Payment by PayPal please will be 2nd class signed for postage. Was on here for years but stopped riding for a while. Photo link below thanks Jon
https://www.dropbox.com/sh/xy6lrag1u8e68ow/AAAOZwOT4KjrUcLmHHzfpElda?dl=0