I thought this might help others:
I put together a hard case for the TM2 (PH) plus accessories.
The Inner Dimensions are: 7.8"x3.9"x1.5", the external dimensions are 8.6"x4.9"x1.9"
It's a plastic hard case with foam dividers and claims to be watertight/airtight.
I'm able to fit:
TM2 PH edition
3 18650 batteries (one inside TM2)
14mm WPA glass stem, Titanium stem
55mm stem (w/ cooling unit), long stem with glass balls and tip
TightVac cylinder OR 1.5"x3" area for 2 additional 18650 batteries or alternative herb container
USB-C charging cable and manual
pack of extras: titanium dosing capsule, o-rings, screens, glass balls
Note: The Titanium Stem doesn't fit into a foam divider. I stack it vertically between the WPA and 55mm stem. It could also be interchanged with the WPA.
The TightVac barely fits and makes it hard to close the latch, but it does close. I sometimes use a smaller 1.5"x2" container for a better fit (easy to latch).
See my Avatar for a picture, the case link is below. (I'm not sure how to post pics on here. If someone can tell me how to upload images, I'll include them. I only see "Insert Image" which seems to require a http address. I just want to upload them from my laptop)
8" Small Hard Case with Pluck Foam Insert