I hate to be that guy, that offers something out of your description.
I have the new Vortex ultralight tripod. Only used at the range, and I was even able to shoot off it to 300 yards. I don't think you can find anything this light and stable for the price, but it won't be $100.
Only reason I'm even thinking of selling is because I just got an RRS, so something's gotta give.
I can get you some pictures later today if you like.
I'd do $350 on it.
Built for backcountry hunters, it collapses into a compact, packable size. The detachable center column adds flexibility for taller shots or low-angle glassing, delivering support for the toughest hunts, all without weighing you down.