Hello,
we currently finished a small project to create a package to install Co:Z Toolkit for z/OS using SMP/E. Therefore we created some REXX procedures and batch JCL. The whole process runs as postprocessing after the "normal" installation using the self-extracting shell script, so it's fairly easy to adapt this method for any future release.
If anyone is interested about some details of this method feel free to respond here or send a PN to juergen.kehr(at)bwi.de .
KInd regards.
Juergen