Hmm, why did you remove all the player sounds?
BTW if people want o do this, i suggest taking a look at the build-compat-pack.sh script to see how files are compressed to create the compat packs to be used on svn server so that old clients can connect. It compressed files quite a lot (all the files a 2.4.2 would need to play wight in at least 70mb, the produces pk3 is only 16mb..). Guess it would be east to make it possible to create such a 'version' with some sort of script..