I just checked the PT website again, and found no info/links for downloading manuals. Surely, PT should do this as a service for their customers. Robin-Subaru does it for our engines. They have PDF format for owners manual, parts manual and major service manual for these engines.
Meanwhile, I think the quickest way to get a manual right now is by good old snail mail. Call Scott up and I'm sure he'll send one out to you. BTW, Scott and spouse are expecting around April 19th, so I would call ASAP. I expect he'll be taking some time off.