The only on there that isn't possible is using Riivolution. There's a Riivolution xml for BrawlEx, but it's pointless.
The difficult part of the rest of it is, if I understand correctly, the custom CSS.
I think that's the part that's screwing me up the most; dealing with things that I'm unfamiliar with, namely coding for BrawlEX (as simple as it is, I was never good with understanding and dealing with hex

) and also dealing with all the new programs that the Vault has to offer. (Like those new ones for the BrawlEX and brstms from Mewtwo2000 and Diddy Kong) That, and to reiterate, there's the issue of "what comes first?" Do I install Project M's CSS then mod it with ASFLink's Dark Blue CSS? Or do I use that blank template I've seen in the Vault that tells people how to mod their own CSS so they can use BrawlEX? And to make sure that it looks decent without contrasting colors, the question "how do I mod the stage selection menu so that it keeps Project M's lineup?" arises. Then there's.....urrgghhh.....

It's a lot at once for an old fogey like me who was only used to dealing with the fighter folder and maybe sometimes modding things in commen5 and sel_character.pac. That, and I also have to figure out how Project M's setup can be translated into the old setup we had back when Brawl hacking was in it's infantcy. Maybe I should just start fresh with a blank vBrawl template and experiment from there, then start working on other templates once I get my feet wet. Oh, and I have to also figure out how to install Dolphin properly for beta testing, something I never bothered with back in the day. And I have to get most, if not all of this done in about 4 days. Otherwise I'll have to deal with losing trust from a friend based on a deal I made with him. So that's fun, I guess.

......I.....I need a cup of coffee now. Strong and black. No cream, no sugar. Excuse me a moment.