There are some things that must be custom if you do this swap.Hasport sells nearly all of them. Some other parts are from Honda but are not original to the EK.
CUSTOM PARTS
Engine mounts
Diveshafts.No OEM units work exactly
Wiring harness
Exhaust header
A/C hoses (optional)
Air intake (aftermarket units are easily modified)
Fuel pressure regulator
HONDA PARTS NOT FROM YOUR CAR
2002-and-up Civic Si throttle cable
1990-1997 Accord shifter box or RSX shifter box
1994-2001 GS-R radiator hoses
2002-and-up Civic Si idler pulley (goes where power steering pump was).
This is the from the article by Sport Compact Car (link earlier in the thread).
This is the parts list, longblock/tranny notwithstanding, are what's needed to make the swap.