I have no diesel experience, I'm a 351c guy. It's not so bad if you have the tools. I was pretty nervous about doing it but like everyone says it's pretty straight forward. I used ALLDATAdiy.com :: Leading Source of Diagnostic and Repair Information
for torque specs and any instructions I needed. I was not planning on my heads needing a rebuild so I was bummed about that cost but it all worked out. The one tool I didn't have was a torx bit narrow enough to properly torque the injectors. Make sure you have a ride to get parts and tools if needed and take your time. Stay organized with parts and bolts when you take them off. Do your research and get everything you can afford. Clean everything before it goes back on.