cable routing

Aloha! I am replacing my Atwood 6 gal water heater with brand new one. I would like to be able to move the heater over to port from its original position, to give a bit more working space on the starboard side (where I seem to spend most of my time). The shifter and throttle cables go...

After23 years and some good use the shifting cable broke at the tranny... I have one ordered and a friend will bring down to Nicaragua for me when he comes on vacation. My question is the young man that took it out (wow what a job, are there any tricks or short cuts?) says he will have to...