Hello Pops -
If you'd like to upload the PDFs directly onto the site via a post, reply and then scroll down to the bottom, below the text box in 'additional options'. Find "Manage attachments" and upload from there- the max is about a 10mb PDF. That way anyone can download it as long this site is up and running.
Thank you for sharing; your son was a truly unique soul that made a tremendous impact on the sport and, I am sure, beyond. Take care....