We just use our mooching/trolling rods. Medium action with a variety of single action reels (Trophy, Amundson, Peetz, Hardy, etc). They suit our needs to about 100' or so. If we wanted to try out some new spots that were deeper and if we wanted to run heavier jigs we would just use our hali rods. However, our most productive ling fishing has been in 65'-100' and our trolling rods work just fine.
We love collecting gear but you can only store so much on the boat. Good luck with whatever rods you end up going with.