Thanks @Bruce Pennington @flemming @John C
hard to be precise to the mm but measurements to the cm are correct.
Nagasa - 63.3cm
Kissaki - 3.3 cm
Nakago - 13cm
Close up on inner face of fuchi - looks like makers mark but don’t want to clean up myself obvs so this is best I can get image-wise. A circle with inner dot and maybe 2 or 3 additional marks to right.