re: Looking for a good tent

4 lbs is pretty heavy for a backpacking tent, but it’s not unmanageable. I’ve never used or owned a Marmot tent, but I’ve had other products from them and they’ve always been good quality. I would have no fear using a Marmot tent for an extended trip like he’s taking. However, the lack of mesh may make for a hot sleeping experience depending on his elevation. I found this ALPS Mountaineering on REI Outlet for $179 that’s much lighter and more suited for backpacking, IMO.