Scheme on CMS?

[Richard G Larson <U09254%UICVM.BITNET@MITVMA.MIT.EDU>]

I am looking for an implementation of Scheme which will run under IBM's
CMS operating system, and would be at least adequate for instructional use.
Various people have told me about Scheme front-ends for LISP, and about
C source for Scheme, but what I'd really like to know is whether anyone
has a MODULE file, etc which I can just drop in on CMS and have students
run it.  (If such doesn't exist, I may have to do some work!)