Well this is another option, however we have no idea if the effort of changing Perl distributions is worth the pay off, since the problem seems to be with installing two modules (and perhaps their prerequisites), the OP has not stated how many other running Perl scripts/services there are on this system, or if their system administrators will allow this. It may be that changing distributions is not a viable option at this point.
, I use it at work a lot, I feel that in these circumstance it may be overkill to suggest changing distributions for what is essentially a small configuration problem.