Hello,
I built a Hackintosh using similar HW ( Fujitsu P420 E85+ ).
Pay attention to :
a) CPU ( if it has integrated graphics such as HD 4600 you may not need a dedicated PCIE compatible video card )
b) Audio : ALC 671 ( layout-id 12 or 15 )
c) LAN : Gbit Realtek 8111
I tested it using macOS Mojave ( 10.14.6 ) & Catalina ( 10.15.6 ) and Unibeast / Multibeast method.
Here are some screen shots:
View attachment 486806
View attachment 486807
View attachment 486808
View attachment 486809
Hope this help. Good luck