Plugins - generators vs ...?

I’m working on a plugin that outputs Javascript suitable for digestion
by Plotr:

And I wanted to copy in the plotr.js file as well as a suitable
version of prototype.

My questions are:

  1. Is creating a generator the best way of doing this? All I need to
    do is copy a few files, not create something with a name, which
    generators seem to want.

  2. This prototype business is tricky. Plotr needs 1.5.1, whereas
    Rails ships with 1.5.0. Any creative ideas on handling the conflict?