There's plenty of very obscure BX parts floating around on eBay; a seller called stjamesoldboys. trim clips, wotsit clips and more clips, thingies, doodahs, all kinds of fiddly bits. He must have cleaned out a dealer who closed down or offloaded "obsolete" NOS. I thought, blimey, gold dust to those in need... last week a pack of boot panel plastic securing nuts went for over 8 squid!
Case in point: BX Estate roof moulding strips, complete set. Well I ne'er...
At least he's telling us what all these doodah bits are actually called, plus he gives part numbers. It's proper bo, I tell thee.
Mark.