oops, looks like i made a typo...
i'm trying to make this as simple as possible, so i don't want to go through the whole linux thing with telnet commands. i remember distinctly another 007 flash package, i think its called '007_tsop_flash_kit_1_0_alpha6' that just flashes directly without the need for telnet commands.
so my plan is to add in the appropriate bios.bin to the E:\UDATA\4541000d\000000000000 folder on the HDD
basically same instructions as in original post but sub the '007_tsop_flash_kit_1_0_alpha6' package for the '007_With_Raincoat' package, and edit evox.ini to include an item for E:\UDATA\4541000d\000000000000\DEFAULT.XBE just to be safe in case this is the exact fixed location the package looks for the bios in.
wonder why nobody else is doing this?--no need for memcard, no need for original 007/mechassault game, no need for linux, and it'll work for any version xbox. most difficult part is just the HDD swap.