Have you tried this: http://goo.gl/4g7JR (also applied to genuine machines). At the end, don`t forget repair permissions with Disk Utility. Works for me in ML.
When I through Mix downside patch "slowly sleep,restart,shutdown problem seems be sloved & when restart or shutdown CMOS reset problem" Now my system 99.99% working Out Of the Box.
Got CMOS reset problem - used patched 10.8 AppleRTC but that doesnt worked.
Can we use the old patch on new 10.9 RTC kext?
No, it won't patch anything.
sudo perl -pi -e 's|\x75\x2e\x0f\xb6|\xeb\x2e\x0f\xb6|' /System/Library/Extensions/AppleRTC.kext/Contents/MacOS/AppleRTC
Actually it's the same patch as 10.8 just different position
< 0000000000001d32 jne 0x1d64
> 0000000000001d32 jmp 0x1d64
< 0000000000000d3e jne 0xd6e
> 0000000000000d3e jmp 0xd6e