Your post brings up the question as to why were you installing an HPOP in the first place?
Again - the reliability of the 05 and up OEM pumps are quite good. VERY, VERY few examples of failure - even after 250k+ miles. Not so for the early pumps. Shops generally have a 1-2 yr warranty. That is not an acceptable life for an HPOP. If I had an HPOP fail in 2 yrs after a shop put one in, then I wouldn't take it back to that shop. IMO you get a better picture of reliability (in this case) from the forums. Especially if you are tuned.
Were talking about 03 pumps
Also, the 03 and early 04 engines have the PIA intake manifold that adds a lot of labor as well.
it can be cheated believe it or not
Here is the only thread I saved on Bosch HPOP's. It was a favorable post, but it is only one.
http://www.powerstroke.org/forum/6-0-motor-problems/858562-best-hpop.html
Edit - here is a thread on the 03 - 04 HPOP. Note m-chan68's (a very talented Ford Tech) comments on how easy the 03 and early 04 HPOP install is .....
http://www.powerstroke.org/forum/6-0-motor-problems/67527-high-pressure-oil-pump-04-6-0-a.html
Also - there are numerous threads like this one across the forums.
http://www.powerstrokenation.com/fo...o/483257-multiple-oil-pump-failure-6-0-a.html
I like this article as well (again - on the swash plate design, not the piston style pump):
http://www.powerstrokehub.com/6.0-power-stroke-problems.html