I have a 1963 Evinrude 40 HP Lark Selectric Shift, Dad bought it new. I am looking for the main wiring harness between the engine & junction box. Marineengine.com's illustration shows it to be part #0378545. They say it's obsolete, which is the response I've been getting everywhere I've looked. Does anyone have any recommendations for who to contact or where to look for this vintage, obsolete harness?