From Danville , west on 70 to 231 south to 57 south. Take 57 south to 58 east( Odon) you'll hit 69 before Odon.
Take 69 to 68 west.

69 is smooth and fast. I set my cruise at 75. Make sure you have gas when you get on 69, there are NO gas stations at the exits on 69. I went this way from Indy for the WOO show last month. There is also NO traffic.

Stay away from Bloomington and 45, that road has so many curves in it it's hard to get above 40 mph.