There's a writeup for all PD cars: http://www.myturbodiesel.com/1000q_how_to/multi/camshaftInspection.htm what is frank doing? I've seen his posts on modding the bearings and caps for oils but it looks a bit intense.
Can you post the cliffs on the mods he's doing? I'm lazy and don't want to read the very long thread elsewhere.If you have basic mechanical ability and can do a timing belt it's not much more. You need the special tools though I'm sure someone else will buy them after you're done.
Are you having him do it? I think he knows what he's doing.