I have this BIOS if you need:

ASUS Maximus Extreme:
ME0109.zip
ME0201.zip
ME0202.zip
ME0203.zip
ME0301.zip
ME0303.zip
ME0401.zip
ME0403.zip
ME0501.zip
ME0601.zip
ME0701.zip
ME0702.zip
ME0802.zip
ME0803.zip
ME0904.zip
ME0905.zip
ME1001.zip
MAXIMUS-ASUS-Extreme-1004.zip
MAXIMUS-ASUS-Extreme-1007.zip
MAXIMUS-ASUS-Extreme-1101.zip

ASUS P5E64 WS Evolution:
P5E64-WS-ASUS-EVOLUTION-0201.zip
P5E64-WS-ASUS-EVOLUTION-0301.zip