I am not a fan of actually "upbadging", but turning something into a "clone" I have less problems with. I think a clone is alright, as long as you "debadge" the car.
I'd put those Sport Muscle SRT clone wheels on, a matte black painted (or just regular color painted) spoiler on, swap on the SRT8 front lip spoiler and fender extenders, put the functional scoops in the hood, dual exhaust, chrome fuel door.. all on an SE. but I'd take even the "Challenger" badge off the grill. I'd keep the hood stripes off, or maybe put matte black stripes on.
Actually putting SRT8 emblems on the car? No, I personally would not do that. I'm not a witch hunt kind of person either.
I must admit, I find it kind of amusing that the SRT8 crowd would be worried about their street cred. Do you people just sit in your car, in traffic, and act all paranoid that the guy in the oncoming lane thinks your car is slow becuase he may have beaten an SE at some point or other? SRT8 owners must have high blood pressure.
Someone said it right earlier in the thread. An SE will never ever have that awesome 6.1L sound. If God drove a car, it would sound like a 6.1L.
Oh and if Darth Vader drove a car, it would STILL be the Buick GNX. I just thought I drop that in there.