Just in case anyone's interested: you can now get the black-and-white
facsimile of the ap Huw manuscript as a printed hardback book from
lulu.com: http://www.lulu.com/content/2453131

The PDF has been available online for some time. But I was given a copy
of the book this summer, and I'm finding it very much more convenient
and pleasant than the separate print-off pages I've been working from
up until now.