I buy wire on ebay. It is new wire, off a spool. Read the specs on marine
wire from west marine and make sure they match up to any wire you mght buy on ebay. So far everything I have bought has been of good quality.
The ebay store I purchase
through will save your oders for you until you are ready to ship. that way it is just one shipping fee.
The last time I bought wire I got 100 feet of 14 gauge, 50' of red 50' of black, cost around 20 bucks with shipping.