I never said the word untouchable, I said his value is higher to us than to most teams...but I NEVER EVER EVER EVER said untouchable. Caron Butler? Sign me up! Lets do it. You said for Vince Carter, now...I would personally rather have Redd than Carter, and Redd could be had without giving up Gibson(at least that's the general perception), which is why I think trading Gibson in a deal for VC is unrealistic. Not to mention, NJ has Devin Harris...why would they trade for Gibson? He would be a joke starting at the 2 in the NBA, and VC would hardly be worth giving up for a guy to back Devin Harris up.
I just don't think Gibson and Wally for VC is a realistic trade idea, and I don't either side would benefit from it as much as they could moving that particular player or set of players in a different deal.
But if we can get Caron Butler, Gibson is fair game.
To be honest, more of my unwillingness to agree with your trade idea for Gibson is my opinion of Vince Carter's fit on the Cavaliers than my "love" of Gibson. I like Gibson, but I'm not blinded by a man-crush or anything ridiculous like that.