I've spent several years developing LiveUSB features and general
build scripts for antiX Linux:
http://antix.freeforums.org/index.php
It's possible that some of this may be of use to you. ISTM that
transferring our technology to you will be easier than making a
"tor" version of antiX.
Peace, James
Our job is to remind ourselves that there are more contexts
than the one we’re in now -- the one that we think is reality.
-- Alan Kay