@ SirFoxx, I have also experienced this panic as well, again it always seemed to be something to do with memory, I got this error every time I used multi - beast also, so I stopped using multi - beast.
I would say try the anval bootloader instead, I know I tried several different bootloaders from the customize menu before I got a successful first boot.
I know its a drag, I must have reinstalled Iatkos 6 or 7 times till I hit the jackpot, you probably don't need the PCIRootUID, I know that I didn't, it was worth a shot though.
As I say, it says that if Iatkos installs then you probably can run it, try also selecting the NVEnabler from the graphics options.
Doh, silly me, yes it was anval bootloader plus NVEnabler that gave me my first boot. I am using GraphicsEnabler=Yes now though after editing my AGPM kext.
Well, I changed to the anval loader, quoopz kernel, and the Nvidia drivers were installed, and it causes my system to crash whether GE is a Yes or No. Will keep you updated. I don't know what my memory problem is, or if that is the problem. I am not using Multi - beast, nor did I use it since it wouldn't work on my current laptop. Iaktos does install, I guess my problem is finding the magic mix to get everything to work, as per usual. Are there other flags that other people have used to get it to work?
edit--here is the latest kernel panic.