I couldn't find a build plate holder with slots wide enough to fit my Lightyear G10 Plate, so I designed a basic holder that will allow you to vertically store several plates regardless of thickness.

Prints fairly well, I do recommend turning off the AUX fan to help reduce warping.

You may also need to print/use some clips to keep the corners of the build plate from pulling up off of the magnetic bed.

The first version I printed warped fairly significantly. I tweaked the settings (turned off aux fan, etc) to help reduce that. The final version still had some warping, and assuming you have good adhesion, it can pull the edges of the build plate up since it is so close to the corners.

I didn't bother re-printing with corner clips, because it was good enough for my purposes, but If you want the best chance at having it as flat as possible, it might be worth giving that a try. It's a fairly common issue for long narrow prints that are close to the corners from the research I did. Here's the clamps that are on my to-print list so that I have them for similar prints in in the future: https://www.printables.com/model/419758-bed-clamps-low-profile-for-bambu-lab-x1p1p