China cabinet relocation & protection?

I've not done that, but would likely pop in a few insect and rodent killers, then shrink-wrap with supplies from like U-Haul. BUT: get it off the floor! Park on at least some boards, or a home-made pallet to fit, to prevent a damp and damaged base. Glass shelves should be removed and boxed/wrapped up. Plan B (which I have done): sell it while in it's best condition, take the money, and roll.

There are many concerns when storing furniture in a garage & two I can think of right away are wood eating pests such as termites and woodworm and anything that can be pushed against it breaking glass etc.I would try to get some type of carton/crate in which to store it and put pest control spray or powders around the bottom of the box/crate as well as draping it in a protective blanket or old quilt before sealing it.

Japan

I like the cardboard box idea. I never considered pests, though.

cover it in a carbboard box