well if you have a copy of Mech Assault or 007 and a Mega-X-Key (or a friend with a modded Xbox and a Memory Card) then you could load Evox through a save game exploit and FTP that way.. no "modding" at all.
I did it when I got my Mt Dew Xbox... I didn't want to mod it but I wanted all of my Save Games and in-game music from one of my modded Xboxs. Obviously 5 CDs worth of music and and who the hell knows how many save games would have taken forever to move by memory card/re-ripping (heck some games wouldn't let me move to a memory card) so I just FTPed from the modded to my PC and then over to the unmodded... Once I was done I deleted the save game with the exploit and you'd never had know Evox was ever running on it.