I am working on a 1973 Mercury 850 85 h.p. It belongs to a friend of mine and it runs fine but all the wires inside are badly corroded and he wanted me to replace them. I replaced all wires until I was down to the 2 wires running from the rectifier to the stator. I was planning on splicing new wire in at the stator but when I pulled the stator off I found all the wires were corroded so bad that only a few strands where holding them to the stator. Can these be repaired at an electrical shop or will he have to have a whole new stator? The stator is covered by some kind of hard plastic and don't see any way to get at the connections inside.