@Ibrahim, the VT isn't necessary, just nice to have. As for 3D graphics, I wonder if it needs host video driver support or can be brute forced.
@Martin, yes, I don't really see much issue with using the OS4 kernel, but Lewis seems fairly worried about upsetting IBM so I'll err on the cautious side. As Ibrahim sayss, things should work on the stock kernel, even ones not distributed by Arca Noae, though reboots will be needed more often to recover memory.