I would personally avoid straight pull spokes for a touring wheel because it makes finding replacements significantly more difficult. The upside is that sometimes you can replace straight pull spokes without removing the cassette.

Aside from that, conventional recommendation would be DT hubs (350s are great, 240s are a bit lighter) laced with 36 or maybe 32 double butted spokes and brass nipples. In your application I'd probably pick some conventional touring rims like Velocity Dyads (which can be had with non machined sidewalls). Most importantly I'd go out of my way to find the best wheelbuilder possible in my area.

If this seems heavy, you're right. But you mentioned remote travel and a desire for durability. If you qualify your durability needs it may become apparent that this is overkill.