Crop Boundary to take Outer edge of Inner Line of Wall, Ceiling and Floor

Hi . I would like the revit to take correct crop boundary while developing elevation.
For eg - It should take outer edge of Inner wall line, floor and ceiling, so that the line thickness is seen and not hidden.
I have to offset the boundary by 0.4" every time to achieve this.
Also it takes bottom of Flooring line instead of Ground level line.
Is there any alternative with Dynamo?