Have a look at Jacques's Cheat Sheet for a way to capture all that nasty output:

Usually when I'm at the point you're at, I try downloading and manually installing the problem modules. If nothing else, that allows you to break the problem down into smaller pieces, isolate the real issues, and capture a manageable amount of information to work with, so you don't get feeling so overwhelmed.

I.e., download http://search.cpan.org/CPAN/authors/id/M/MS/MSHELOR/Digest-SHA-5.43.tar.gz, then:

perl makefile.pl
make
make test > test.txt 2>&1
make install
[download]

Good luck,