10M will give you 100% annual so approx 50% or 27397.3 Net per day until the change then it will drop too 45% annual.
There is a PIR calculator in the wallet where you can see the daily stake and % apr for a given amount.
It takes 70 blocks to confirm so around 70 minutes.
New coins start to stake after a hour but the confirming takes longer so coins start staking again when confirmed.
But yah never know maybe you get lucky, think best chance you have is in cryptsy chatbox (my guess is cryptsy's Net wallet is 3th spot with 40m in it)