A sturdy set of touring wheels for riding X-country rather than Sweet 16s or Rolfs or other low-count spoke setups.
48 or 40 spoke rims/hubs are still available and easily fixable if you have problems in the back country. Suggest carrying a couple of correct size/length spokes for emergency fixes. On some trips we've been several hundred miles away from the nearest bike shop, so it pays to have some repair knowledge/capabilities.
As stated before, there are many brands/price ranges than can handle a team of your size.