Custom Shimano 3x11 drivetrain
No you would either have to use a 2x11 speed drivetrain or a 3x10 speed drive train. You can't pick and choose and any hacks would reduce reliability. 

Using the 10 speed 30/28 is the same gearing as 34/32 on the 11 speed so no advantage on the change.

For remote touring maintenance is as important or more important than gear selection. 

For long distance touring 10 speed would likely be more available on the road as 9 speed is being gradually phased out and 11 speed still quite new so would factor in what stock bike shops held.