Year One Engine Forward Harness

Mattax said
Major differences off the top of my head:
'65 firewall connectors are very different
'71 uses a ground controlling voltage regulator so its connector is different.
I'm sure there is more.

Thanks, reason I ask is simple, the harness for the '71 is about $150 and the correct harness is $700 and effing 12 dollars? Really?