I can’t answer directly but I’ll try to help as best I can.
When I was training for bouldering, I used the book “Performance Rock Climbing” as a guide. I understand that some of the sports science cited in the book is now out of date which is perhaps not surprising given it’s 23-years old. Still, you might find it useful and it’s available at very low cost on Amazon.
Dave Mcleod’s books or blog, and Tom Randall’s blog might have some ideas about structuring training. I believe both Dave and Tom are pretty good at responding to comments so that might also be worth a shot.
Finally, when I used to campus (around three times per week), I would warm up for about an hour before hand. 30-minutes seems quite short to me but perhaps I was just paranoid about finger injuries.
HTH. Apologies if I told you what you already know!