Something like a Santa Cruz Nomad would fill the bill well; but, unfortunately is well over your budget. A used Specialized Enduro, especially if it's had some of the weenier parts swapped out, could be a solid option. Hmmm . . . help her out here folks. And please, we can do this without the usual "get a hardtail" crap . . . we're talking Revy here. Big mountains, big sky, big gnar . . . just not a big budget.