You need to do a members quest to recharge the amulet, the recharging place is in a members area. Would not make sense to not let them make their own amulets, because they can make all the other amulets. The dragonstones are only available of rare monster drops and crystal keys (members), the chest for the dragonstones are in a members area, you would also need to give them the magic spell for enchanting dragon jewellery. So no, this would create to much trouble. I'm not sure about the Amulet of Glory, but I wouldn't mind letting F2P have it. As for the trouble - the only real issues would be the Merlin's Crystal and the Master Thieves' Armband, the latter of which I'm not seeing as a real requirement (nothing to really tie the two quests together on paper), and the former being in an exclusively Members' only area. So maybe it wouldn't be worth the trouble. Maybe only uncharged amulets could be available for f2p? and they could be available only on the grand exchange, kind of like how maple logs were only available for f2p players on the grand exchange before the resource dungeons came out?