I've updated the instructions to grab origami from 

https://github.com/gdelugre/origami

I'm going to add in pdf2pdfa in the workflow. I'll tack this on after ghost script reconstructs the file.

######################################################
pdf2pdfa [] [-o ]
Enforces a document to be rendered as PDF/A.
This will disable multimedia features and JavaScript execution in Adobe Reader.
Bug reports or feature requests at: http://github.com/gdelugre/origami

Options:
    -o, --output FILE                Output PDF file (stdout by default)
    -h, --help                       Show this message
##########################################################

Pdfmetadata is working again for me, pdfcop is still busted.  I'll have to look into this.  Its giving me an error that there is no file pdfcop.conf.yml in the directory.  This might be due to linking it.  I'll look into fixing this and then fix the instructions.