I don't know too much about frontend, but I my guess would be, that it would be difficult to get an 1 to 1 copy, but you coud get something fairly close.
Hmm. It shouldn't work for old.endlesstalk.org, since it has a setup, where the backend isn't reachable, but it should work for the other 2.
I have just found that the image service has had some files corrupted and therefor it isn't working currently, so that might be the cause?
I'm working on restoring a backup, so it works again.
Hopefully that fixes the issue. Will let your know, when the image service works again.
I don't know too much about frontend, but I my guess would be, that it would be difficult to get an 1 to 1 copy, but you coud get something fairly close.