I believe in frequently training something to get better at it. So I would personally figure out what is most important to me.
If it is pebble wrestling or climbing, then make that your main focus each week and cascade everything else around that.
For example, try prioritizing everything in order of importance:
2)Conditioning (hill sprints and boxing bag)
Figure out how many days you plan on devoting to climbing since it is the most important thing and what is given you the most pleasure (I assume), then figure everything else in depending on how much time you have left in your week and your ability to feel good for your climbing.
I would climb every week, as much as possible, then factor in some conditioning maybe 2 days per week and lift 1-2 days (depending on your overall intensity of everything).
I used to climb and my partner and I would sprint/run up the mountain with our packs on to the base of our climb. If it was a pretty long steep hike to the route (2+ miles) we would just speed hike that bitch and would be huffing at the top. Plenty of conditioning worked into your day right there.
Otherwise, I don't think there will be very much success in overthinking it with weekly sessions or blocks or whatever. I mean, try it, but I would personally just look at my overall weekly physical energy exertion and time available and make something happen and adjust it over time with experimentation.