I've been trying to add in SR3 items but run into problems.
Currently the ASM update tool does not allow us to insert extra lines.
And all of the clothing articles that are missing from SR4 are
not listed in the customize_item.asm_pc file for SR4 (which is logical as they don't exist in the game).
So items (be it a shirt, pants, shoes, etc) that were left out due to memory limitations will have to wait until an ASM tool is available.
So it'll be possible to port over the egyptian hair?
It should be possible after the asm tool becomes available.
Basically, the hair style is in the SR3 customize_player.vpp_pc.
You would simply extract that particular str2_pc file and the customize_player.asm_pc from SR3 vpp.
Then unpacking/convert/repacking the str2 into a SR4 version.
Along with extracting the area within the SR3 asm file that calls on that hair style, and inserting that data into the SR4 version of the same file.
It should work... no promises though.