I have been advised that since Koha is an open-source project, it is eligible to be hosted on sourceforge.net which appears to have no space or bandwidth limit. So there you go.
Coincidentally sourceforge.net appeared to have been down for a while just a few hours ago and after it came back up the file list didn’t match what it has. So if you can’t access it now just try again later.
Note that only release 3 has been uploaded at the moment. Sourceforge doesn’t play nice with my dual-wan setup so I can only interact with that site at certain times of day.

