Hi Herman,
I second Paul Abbey's suggestion. Breaking the stack up into thinner stacks with foam board dividers between them is a good idea. Cut the foam board with approx. 3" margin around the perimeter of the paper stacks. The folded corners of glassine or paper Paul mentioned can be taped to each gator board divider so that your primary wrapping material on the paper objects does not necessarily need to have direct contact with tape. At your larger dimensions however, you might also consider double-wrapping each stack of paper so you can tape along edges as well, and discard the outer wrapping when unpacking. The latter may not be necessary if you are only tilting the crate up briefly to get through doorways.

A tape with good adhesion but relatively easy release is recommended, such as white artist's tape. It is available in most art supply stores & online. Clear packing tape is not recommended for this, as it can be difficult to see when releasing the folded corners.

1/2" ultra board is another potential divider material for large portfolio-style packing such as this. It is also stiffer than 1/2" foamcor across large spans, but a little more cost-effective than 1/2" gator. Any of these foam boards can be joined along their edges with industrial-grade hot glue, & the seams reinforced with tape.

A wood crate at those dims will have some weight to it, but you can mitigate this by choosing a relatively simple crate style and limiting the thickness of foam cushioning inside. 2" is generally considered a minimum thickness for polyethylene foam cushions. If the paper objects will not require foam thermal insulation, you can eliminate a few inches in each crate dimension there.