Digging&Flattening: How would you do this.

Initial Puzzle state: 

So I got this little gap near my homestead. Which is very useful for wiggling trough without having to resort to climbing.
But when it comes to walking trough it while carrying something its just to small.
What would be a good(minimum effort), and possible, way's to adjust it to allow for passing trough it while carrying something. (Any info on any possible game rules in relation to this are welcome to. Like probably minimum ground/gap width for carrying something trough a gap.)
Obviously not lowering the Left cliff corner.
Lowering the Right cliff corner seem also a relative large amount of (unneeded)work.
So that leaves heightening the the ground in the gap itself (and there by widening the gap). But its unclear to me if that's possible. (for one as you need to carry the dirt before dropping it.)
So how would you go about this?


So I got this little gap near my homestead. Which is very useful for wiggling trough without having to resort to climbing.
But when it comes to walking trough it while carrying something its just to small.
What would be a good(minimum effort), and possible, way's to adjust it to allow for passing trough it while carrying something. (Any info on any possible game rules in relation to this are welcome to. Like probably minimum ground/gap width for carrying something trough a gap.)
Obviously not lowering the Left cliff corner.
Lowering the Right cliff corner seem also a relative large amount of (unneeded)work.
So that leaves heightening the the ground in the gap itself (and there by widening the gap). But its unclear to me if that's possible. (for one as you need to carry the dirt before dropping it.)
So how would you go about this?