I need a wiring harness for a '79 merc 200. Merc. sez no longer available. What are my options? Does anyone know if I can make a later throttle/ign/wiring harness work? I rebiult the pwrhead a couple of yrs ago for my dad or I would just tell him to buy a later motor!? I would love to get him out on the water again this year if at all possible. thanx in advance for any help! Tim idea