I went to Arco last year and while the attendance wasn't anywhere close to what it used to be, there was still a hard-core group of Kings fans just waiting for something to happen on the court they could cheer about.
Moving Martin for anything less than a franchise player would be the final dagger for a number of those fans.
We're already turning back in the right direction with the acquisition of Hawes and JT and possibly Greene. I also like Nocioni although I know he's not that high on your list. I don't think we need to trade away one of our "veterans" and quite frankly, most of these proposals are better suited IMHO to one of the NBA video games, where you don't have to worry about things like ticket sales, jersey sales, adoration of young fans, etc.
But just my two cents here since I've learned there are very few trade proposals that actually look even the slightest bit interesting to me. That's why I didn't stick around in that instant GM game a while back.