There may be hope just yet, then.
If it was that simple, it probably would have been done dozens of times already.
Clone Engine I don't give a crap about (clones were removed in Melee, why are we adding them back AGAIN after complaining about them?), Stage Roster Expansion is meh (The only stages I've wanted to hack were Pictochat, Hanenbow, and all the Melee stages except Big Blue, and I've set up Riivolution to change a specific stage on Hanenbow so I can change a stage when I want to), File Patcher Code is fail (Hi Riivolution doing a better job at it), Alloys are a joke (OH GOODIE I CAN PLAY WITH B-ATTACKLESS CLONES... would be better to just port the models to the original characters), and PSAs being silent are the least of my worries (Makes Max Onslaught much less annoying, and Gray Fox much more epic).
To have no barriers while installing Brawl hacks, you HAVE to get NTSC-U.
Sad.
And you clearly don't know what Clone Engine is really for. (personally, I believe this stuff will never ever get finished, but hopefully I'm wrong)