You may find the following modules to be interesting reading (and to mostly duplicate the functionality you're contemplating in "1.")

• MyCPAN::App::DPAN -- A tool that will let you create a personal (and even portable) repository of distributions for easy install using cpan
• Task -- A more flexible replacement for Bundle::
• Carton -- Another bundling option.
• scriptdist -- Create a distribution for a Perl script.

I think what you're after has already been done, if what you're after is a means of creating a portable bundle that can be used to install a toolchain. It's just disguised behind the dpan, and Task names.