2002 TJ Performance
I have seen a telescoping front track bar, I think JKS makes it. You just loosen a nut or something when your going offroading, and tighten it back up when your done. Its similar to your idea, but that would have to be a long @$$ stabilizer! I think you may get some bump steer though, who knows... it would be cool to try though! Try it and let me know, if it goes well I'll do it, a stabilizer is cheaper than that telescoping trackbar!