There are some standalone build scripts available for MacPerl. I've build my own
which runs perfectly on a large number of my company's Macs (no MacOS X).
The idea is to recursively check for use/require lines. Quite a few tweaks take care
for "require $module" and similar lines. Therefore it can never be perfect and I hesitate to publish this to a broader audience.
I was successful though to build a standalone application for "amphetadesk"
(www.disobey.com/amphetadesk/), a rather large application.