you will need the HPOP front gasket that goes between the HPOP and front cover.... th part number is
F6TZ9417AA and it was $16.....
this is a MUST but the rest of these you may not need....
I had to get the orings that go in the the 4 fuel lines on the fuel bowl.... they are square cut and it is best to get them at Ford.....part #
F81Z9C387BA and those were $18..... you will only need 4 but you will get 6 becasue there are 2 for the head connections (dont worry about those).....
you may need some new orings for the hpop lines.... dont know the part number and didnt need them so I dont know the prices.....
last you may need the gasket that goes between the HPOP reservoir and front cover.... it is basically a oring.... mine was ok so I didnt worry about it....if you have to replace this gasket, read this first....
Important HPOP gasket information - Powerstroke Nation good info so it doesnt happen to you, the RIGHT part # is at the bottom of the page.....
I took my reservoir off WITH the fuel bowl still attached and I didnt take the filter out of the bowl (but I did drain it) because my filter was almost new.....
If need any help that way let me know....
~Jim