And you are also not alone in completing (mostly) the island ahead of everything else - take a look at Sean McDermott's Shangri-La island; from yet another build of this classic mold, here at ModelFleet.
And here is where you're going to get assistance, as well as encouragement - to wit, this old Board Header:
Click on Image to Enlarge
As for the specific rigging and way the hoses were draped, I'm sure we can also find many good historical pics, as well - but I daresay that the eye (loop) on the short arm extending from the hull side, straight down from the tip of the boom, played a role in the hose deployment, as well.
So, here's already a start at encouraging you - and I daresay you came to the right place, Jim. Great to have you aboard, buddy!