i recently took ownership of an 18ft trihull with a 1975 merc 1500 outboard engine it ran last fall this spring it wouldnt start so upon investigating it looks like no spark issue due to a shot wiring harness on engine i priced out a harness a cdi box and then looked at the price of dist cap and thought wow this shizzle is pricey if the motor checks out with compression is it worth the money to make it run or should i look to repower ??