[racket] using Racket to build an image-based Lisp: feasible?

I'm working on a Lisp. Recently I've been tinkering with an implementation in Racket. Racket makes it impressively easy to write.

I need it ultimately to be an old-fashioned kernel+image Lisp, with a platform-specific kernel executable and a platform-independent heap image. 

I'm aware that's not how Racket is designed. The question is: how hard would it be to use Racket to build such a thing? Easy enough to be worth trying? Too hard to consider? Can someone see a way to do it that would be easy enough to be worth a try?

Thanks for your opinions.

--me