Incoming include the Robinson brothers from Kaierau, lock Cade and second five Ethan, winger Simon Dibben back from a hamstring injury and loose head lock Fraser Hammond been named on the bench. Jamie Hughes comes in for Middleton, while Campbell Hart's return will add strength in the locking department. Dane Whale steps in for Seruwalu, while Kaveni Dabenaise is in for Clare at centre.
While the Robinson brothers are both named on the bench, Caskey said Cade Robinson was likely to play for Wanganui Maori instead.
With the absence of Clare there is still ample cover for kicking duties with Nick Harding, Whale, Cody Hemi and even Ethan Robinson all capable with the boot.
"It's going to be difficult with five out, but it is what it is," Hamlin said.
"We've been trying to play dry weather rugby on wet grounds and it hasn't been working for us, but we wanted them to play their brand of rugby that's worked on dry tracks."
Caskey conceded despite the injury list, the team looked good enough on paper.
"They are all capable of doing the job. We know we need to win and with a bonus point - sounds easy when you say it like that," Caskey said.