Personally, I don't see the Eternal Shield and the Golden Pillar being worth much at all. It's my opinion that those are merch food, though you might want to wait for a second opinion.
Pommel of Demonslaying (20%) is really variable depending on how desperate your buyer is and how long you're willing to wait, can be anything from about 15-100k.
I once had that exact hornbow, and could not sell it to save my life...so..my best guess for your r10 Mursaat Hornbow 15^stance is really going to depend on whether someone wants it for collector value, sincee the bonus mission pack can give you a max inscr one.
