PWA1967, not all gold is of scrap value, look at the 1989 sovereign, in 1989 you could buy this for around £190, today you couldn't get it for less than £850 Scrap value or just over would mean the coin has no numismatic value and of course therefor would be classed as scrap, even so you'd still pay above spot.
The new bullion coinage can now be stacked against your pension as long as it's above 99.5% purity and wouldn't be liable for capital gains tax, older sovereigns are .916 gold where as the new bullion is .999 purity