I tried to customize slax (http://www.slax.org) and downloaded but the customized build fails to book, giving a killed killed killed message. Strange!
Slax uses KDE, and not suitable for low ram machine. I would Slax for machine with min 256 Mb ram.
How did you customize? The best option is to use dir2lzm.
Warm Regards, Mukund Deshmukh, Beta Computronics Pvt Ltd, 10/1 IT Park, Parsodi, Nagpur -440022.