In the post I linked above should be the source code for PSavFix, it has the section sizes for RS and FRLG.
short FLMAP[] = { 0xF24,0xF80,0xF80,0xF80,0xEC0,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0x7D0,0x01C,0x100};
short RSMAP[] = { 0x890,0xF80,0xF80,0xF80,0xC40,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0x7D0,0xF80,0xF80};
This one is for Emerald.
short EMAP[] = { 0xF2C,0xF80,0xF80,0xF80,0xF08,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0xF80,0x7D0,0xF80,0xF80 };