How can I rig this foot to easily move like a chicken's?

Hello internet!

I’m currently rigging a raptor and I’m trying to rig the foot to move like a chicken’s, meaning there’s a lot more toe bones that need moving and bending than there would be in a human foot rig. I’ve followed part 3 of this tutorial up until after he rigged the toe bone. Here’s what my current rig looks like (blend file is attached as well).

What I’m trying to do is make the foot move like this just by rotating F (which controls the green bones) up and down and moving G (which moves the leg). Or do I need a completely different foot rig?

Any help would be greatly appreciated!

Thanks in advance ^^

Blend file:
uTAHRAPTOR LOW POL DWM Experiment 1 Rigging done IK Rigging Problem with foot. BUT IT WORKSble.blend (1.19 MB)