in reply to How to run a legacy perl version smoothly from perlbrew & Carton
Install perlbrew and get the perl you want into your PATH using the prescribed method of your choice. From there, use perlbrew --install-cpan to get cpanm (perl agnostic). The hook up cpanm to Carton (don't know how, but it should be possible), then boom you're off to the racest. The big thing to remember when installing modules is that it is critical that the correct perl is in your PATH.