If you have already flashed 3.7 yes you would just wipe cache/dalvik and reflash the rom to restore the ramdisk. I could make a anykernel version of IMO's 3.7 if you want.
But wouldn't you lose the speedtweak script? DT did an AnyKernel version of 3.6 and that killed the speedtweak script, not to mention causing a bunch of boot up issues. And as much as I like SetCPU, having less programs running in the background is more desirable.
(just make sure the kernel is usable with the ROM you're currently on)
