I like the concept, coin backing up with real gold will be great
Backing up a crypto coin is a bad concept. It totally exposes it to unnecessary dangers of government actions and third party malfeasance.
crypto currency gets its value from the goods and services it can be exchanged for in a free market
we have xaucoin which is based on the Bitcoin model with only 2.1 million xaucoin with true rarity and scarcity value potential
no ico either or PoS and also helps to test the Bitcoin model long term after all 21 million BTC are in circulation and miners will only see block rewards of transaction fees
xaucoin
https://bitcointalk.org/index.php?topic=974426.0