You must be using the incorrect version of MK... use mkla1.zip
These are the names of the ROMS you are looking for and their correct cksums:
NAME CKSUM
ROM_LOAD ( "mkg-u111.rom", 0x000000, 0x80000, 0xd17096c4 )
ROM_LOAD ( "mkg-u112.rom", 0x080000, 0x80000, 0x993bc2e4 )
ROM_LOAD ( "mkg-u113.rom", 0x100000, 0x80000, 0x6fb91ede )
ROM_LOAD ( "mkg-u114.rom", 0x180000, 0x80000, 0xed1ff88a )
ROM_LOAD ( "mkg-u95.rom", 0x200000, 0x80000, 0xa002a155 )
ROM_LOAD ( "mkg-u96.rom", 0x280000, 0x80000, 0xdcee8492 )
ROM_LOAD ( "mkg-u97.rom", 0x300000, 0x80000, 0xde88caef )
ROM_LOAD ( "mkg-u98.rom", 0x380000, 0x80000, 0x37eb01b4 )
ROM_LOAD ( "mkg-u106.rom", 0x400000, 0x80000, 0x45acaf21 )
ROM_LOAD ( "mkg-u107.rom", 0x480000, 0x80000, 0x2a6c10a0 )
ROM_LOAD ( "mkg-u108.rom", 0x500000, 0x80000, 0x23308979 )
ROM_LOAD ( "mkg-u109.rom", 0x580000, 0x80000, 0xcafc47bb )