Good luck with all that.
I think the self contained route is probably better since it fits with how
things work with Node and its modules. Something like install the packages
in a clean cache using npm 2 so that they aren't maximally flat. Then tgz
up the package folder. It'll have all deps at their correct versions in
their node_modules folder and be actual package code code instead of
recreations from source. This is also similar to