Crop view centering for 3d sectionbox views

I am trying to get my cropped views to place directly on the center of my 3d section box of my view so that it is visible on my sheet i already but i cant seem to find a good working sollution to the problem that i am having beacose most of the crop box related issues on here are about 2d views and those selutions dont work in this case:
the issue:


the code for making crop regions:
image
how it should look:
image