Is the person selling the Mac 11 that much of a dreamer? £150 RIF with £150 worth of mags for £250. So that’s already £50, which I would agree is not enough if it’s scratched etc. However my experience is that buyers like to feel like they’ve won, so always ask for money off (I listed a used once KJW Glock 27 with a spare Guarder mag and grip spacer for £50 plus postage and someone offered me £30 incl’ postage), so we could be talking £200 posted, which seems quite reasonable to me.