Starting around $1700 for good condition. Add a couple hundred bucks if better than good condition, subtract a few hundred if worse. I've bought horns described as "plays well" and "pads in good condition" that needed $300 worth of work to play at all.
I assume by "box" you mean case, not the original cardboard box the case came in.
I assume by "box" you mean case, not the original cardboard box the case came in.