The Raiders are a little like the Knights where the footy required to beat them isn't that complicated and you really don't need to pull off great attacking plays.
As you said the Raiders boys wilt towards the backend of halves, they also wilt badly off the back of no possession and suffer mental fatigue. Raiders are simply all about momentum footy, there's nothing complicated in there setup plays and they're all about just powering through the opposition and then having the likes of Hodgson, Leilua, Rapana, etc pull off some nice plays.
We simply need to maintain possession and prevent the Raiders from having back to back sets, nothing complicated in attack is required other than looking for some safe offloads when available. Our forwards also need to aim up big time defensively to begin the game with some fast line speed while our backs need to take a few extra carries to help of forwards conserve energy for defence.
Anyway it's not as simple as just that lol, bur the Raiders are definitely beatable with oir current team just like i thought the Knigts were. Klemmer out does make things harder though.