The issue with the installation is that I cannot find Node.pm

AFAICT there isn't any 'Node.pm'.
There's a 'package XML::LibXML::Node' as part of LibXML.pm - and I would think that package gets loaded with use XML::LibXML; not with use XML::LibXML::Node;.

Update: The first line of the "SYNOPSIS" section in perldoc XML::LibXML::Node specifies that you use XML::LibXML;.

Cheers,
Rob