@Apology I could offer 10kg in retired FR items, potentially, depending on what items you'd be interested in? I've got quite a few old fest / downtime items!
@Apology I could offer a Speedy familiar, which has a LAH of 14.5kg, if that feels fair to you? That way even if you undercut LAH a bit to sell fast you could make back the 10kg? If that doesn't work, I have a spreadsheet of my retired items, though I'll be pickier with some things than others.