LordCosta, are you trying to build a budget mill deck? If so, that is perfectly fine, it answers a lot of the card selection questions.
I agree with Ghost Quarters being in the mana pool.
As for the
Evolving Wilds, Sage of The east is correct in the sense that 4 Islands are better then them. However, fetch lands in a mono colored deck are not a bad idea. You need to use actual fetches though in case you need to crack them on your opponents turn for mana for a counter spell or something else. Using fetches in a mono color deck is a pseudo draw spell. It thins your deck a land card to get to cards that you need. And if you are going straight mill,
Hedron Crab can make use of your fetch lands. If you put the Crab in I would instead drop
Rogue's Passage to 2 and put in 2 more fetch lands for a total of 6.
I love the clue mechanic, but its is hard to pull off. It is great for getting artifacts out if you need to trigger things with them but just to use it as a draw is slow.
I also love
Mesmeric Orb, I have been trying to build a deck solely around that card and graveyard recursion or tapping down as much permanents your opponent has. In this deck it could help but I think the deck would have to be overhauled to include maybe flashback cards.