Here's what I did. This 21 Circut harness:
http://www.ebay.com/itm/21-Circuit-S...#ht_3320wt_758
Followed by this so I can use my factory Packard 56 connectors and terminals.
http://www.repairconnector.com/packard-56-terminals/
But it all depends how much time you have to invest versus how much money you want to save. Me, I went for saving money + I get to build my harness exactly the way I want.