I have a VPS that is managed and am mysteriously running out of space, I think I found a few files I can delete. So just double checking it's ok to delete the Perl install files:

/root/perl588installer.tar.gz (pretty sure this can go)
/root/perl588installer/ (wasn't sure if this can go, I'm thinking it's just used when perl is installed)

I rarely install this kind of thing myself but when I do I'm sure you can delete these files.

Thanks