Spud, what a bad stroke of luck, that sucks.
but resulted in a great tutorial from you
There is a detailed service manual available on the AJP website for the PR5, you and others already know, It uses the same engine as ours. so is seems quite relevant.
(I don't think we have had this one on here before )
It contains a number of procedures, specs, service wear limits and torque settings in regards to the engine and fuel system.
It Might serve as a good companion to your tutorials.
http://motoajp.com/ajp-support/pr-service-manuals/