stock or doing your own thing?
stock I think year one has the lock on bulkhead connectors. sometimes they pop up on ebay.
the ends are napa stocked parts you can pick up there. the archives should have the part number.
There are a few places to get spools of wire, multiple colors. Just depends on what the min is to buy.
Not stock, I have looked at the connectors this guy sells for a while.
http://www.route66supply.com/he also sells smaller lots of wiring.
http://www.delcity.net/another bulk wiring supplier and connectors.
http://terminalsupplyco.com./Default.aspxanother wiring and end supplier.
there are a few others.