Kato make a nice range of train cases, big enough to fit between 4 and 12 vehicles in. They're made for Kato's Japanese models but those for 4, 7, and 8 will fit Mk1s (and Mk2, Mk3 & Mk4 - although some trimming may be needed).
Kato 10-215 takes ten models, and 10-216 takes twelve. Does anyone know the dimensions of the slots? Will these two cases take 63' Mk1s?
Steven B
https://www.ngaugeforum.co.uk/SMFN/index.php?topic=22045.0 (https://www.ngaugeforum.co.uk/SMFN/index.php?topic=22045.0)
Dimensions in this thread for the 10-215
Kato 10-215 case with British outline coaches, no Mk1s in there but they'd fit fine.
(https://farm8.staticflickr.com/7914/40562902363_b4d9e35ae2_z.jpg) (https://flic.kr/p/24NptFz)
kato-10-215-case (https://flic.kr/p/24NptFz) by Rail Squid (https://www.flickr.com/photos/129145651@N06/), on Flickr
Mk3s are longer than standard Japanese coaches, but should fit into anything Japanese Shinkansens are stored in.