Don't worry about them being 2 piece rods, if strength is a concern. You'll be shopping for a glass or glass composite rod and they will be super strong. Sport show season is a great time to look for deals here in Michigan because of all the salmon trolling rods. Many companies make rods that will work just fine and you can probably pick some up for $25-30 each.

The aversion to 2 piece rods for most anglers comes from years ago when two piece rods weren't built like they have been for the last 15 years. 2 piece and telescoping rods are able to handle anything you can do to a one piece rod.

I have several 4 piece fly rods that handle Kings just fine. I know its a different application but like Will said the rods are made differently nowadays..