in reply to
All CPAN Modules
There's Acme-Everything and Bundle-Everything, but neither fits the bill exactly.
The former will install any missing module (and dependencies) needed to utilise any specified method in any class that the code calls ... but, IIRC, you may have to be running as root for that to work on *nix type systems.
And the latter claims to contain only 5500 modules (and not everything) ... and then there's also the caveat that it may not actually install them. (I don't know why that is. Perhaps that's just its way of telling you that you may need to be running as root.)