swap in a civic

i want to know how hard it is to put a d16z6 motor into 89 hatch back civic. will i need new motor mounts i know i will need a wiring harness and ecu. it's my first motor swap so any info is helpful

This will show you how and tell you what you need from wiring to putting it in.

http://www.thezcresource.com/index.php?module=Static_Docs&type=user&func=view&f=odbiconversion/odbiconversion.php