SkyWatcher Evostar 72ED comes with a nice aluminum (inside the aluminum cover are thin wooden boards) box. But actually I do not use it because this OTA is very compact and fits in any remaining space in my tool box.
Today, suddenly, I was struck by a great discovery :-)
The case just fits Vixen GPD eq mount! (That means it also fits SkyWatcher EQ5 mount, GPD's copy.)
I removed the fillers shaped for the OTA, and used some of them plus additional cushions made of polyethylene foam. Then, it makes a perfect box to transport GPD.
Here's a caution: the handle is not strong enough considering the weight of the mount (plus balance weights). I just removed it to prevent a potential accident, i.e. the handle breaks and the box drops and ...