Oh! That sounds like an amazing project.
The experimentation version of paradise do have a "full" lisp to play with, you can see the library functions here.
I'm not sure how I would go about implementing this in pure lisp, I'm actually re-implementing paradise in ANSI C at the moment, and I'm using a very simple s-expression parser to handle the procedural scripting stuff. I'd love to see a scheme or lisp version of paradise, if you create a repo, I'd love to follow along.