Hi Eden
I've reread your reply more carefully and I understand what you are saying now about the Hebrew and Aramaic. Nevertheless "olam/elam" in relation to kingdom/kingship only has those two instances in Daniel as far as I can see. (There are some toadies in the intervening chapters who say "live forever" to their kings but obviously that is just their custom rather than anything prophectic).
I just don't see sufficient evidence that the prophecy is not messianic when that is what it appears to be. I totally respect your line of reasoning, but there just seems to be too much weight on the other side of the scales.
Even if the gold is from God's standpoint I think it can still be understood as the "best" human government was ever going to achive, and it would decline from there.
Ultimately the gold is proven to be perishable, and the mountain that fills the whole earth is supreme. So regardless of the material and regardless from whose standpoint, there is a clear winner that is shown to be of more enduring value.
That's the way I see it anyway.
FG