Well, for starters why did you put all the GPU info like that? Why not just use GraphicsEnabler or a regular hex string? I'd remove busratio=20 if you have native power management (it shouldn't be needed), and try booting with -x32 in case there are some kexts that are 32bit only. If you use AsereBLN's booter there is no need to use boot-uuid=613727BA-68E6-3459-AAC0-852C47FF8A45.
What I see that could be a major problem is that there is no DSDT or SMBIOS specified, these two are needed to boot OS X right.
What boot-loader are you using?