I decided to buy the Oben CQL-13 tripod+ball head for my New Zealand trip. It's small and light, obviously not for large and heavy lenses but fine for my landscape setup using either my Z50II with DX 12-28 PZ or my Z8 with FX 14-30. I will hand-hold my 600 PF for animal action. Now I just have to figure out the best way to hike with the Z8/600mm. I've read all the back and forth about black rapid (and the negatives), the moneymaker, and a few other alternatives such as Cotton. I'm looking at Spider right now. Not planning on doing long hikes (drive up, hike maybe 1-2 miles RT). Also taking my AF-P 70-300mm (adapted, gets me to 450mm on the Z50ii), and could possibly be used on the Oben tripod, which accommodates a hanging weight.
Thanks for the discussion, really helpful.