I'm in the process of porting the Phantom Kernel for Xperia Go. And since I do not own the device, I'll need your help and cooperation, and please be patient.
So for starters, here is the kernel I've compiled from Stock Sony sources (6.2.A.1.100) : Download Link
Instructions : Flash via CWM. Or incase you want to use fastboot, make sure to wipe Dalvik Cache after extracting the kernel.elf.
Please file your bug reports here. Once I do get the device to boot, I'll go ahead and add all the features to it in a jiffy.
Credits : Thanks to @munjeni for providing the ramdisk, and for being such an amazing developer and @DeepUnknown for all the invaluable lessons.