Beta sandbox client for build 12857?

[FpicEail]

When the cataclysm alpha client was leaked, there was programs like WoWcore and Tom_rus which made a localhost sandbox server which you could use to tour the environment.

However, at some stage in the beta testing blizzard changed the client to the download streaming version, and everyone had to reinstall it.

I found a cataclysm client that patched up to 12857, but now i need a sandbox server client, and i cant find any version that works with 12857. I tried the tom_rus client for 12319 (not sure if that number is correct), and it didn't seem to work. it would get stuck at connected, then the tom_rus console window would randomly close.

So, is there a working sandbox client for Cataclysm Beta?

Also, TLDR: this is for the SANDBOX SERVER client, not the BETA WOW client, just in case people don't get that part.