I'm pretty confident you can finish the summer camp, even without taking too many shortcuts for the remaining girls - of course that's always possible, but most of the remaining girls are among the favorites for at least some of us, the girls who didn't make that cut are already mostly gone, with a few exceptions. If you need to take a break, you can always work on a different story and come back later, but I like how you are sticking to just this one story right now, and I'm looking forward to see the fate of these girls, even if it takes a while.

Some stuff I would like to see, just in case you need more ideas for the remaining girls:
Similar to how GP mentioned in >>36127 I also like to see interesting positions and devices. I like it when the girls are forced into uncomfortable and unnecessary cruel positions, especially when those positions are also very revealing. For example the reason why I liked the upside down hanging with Rica so much was mostly her position.
I like to see any kind of sensory deprivation: Blindfolds are great, and gags are too. And I would like to see the more extreme versions of that: Taking out eyes like I mentioned a bunch of times, also taking away their ears to make them deaf, taking away their tongues might kill them so probably not the best idea, but for example forcing a hook or a nail through their tongues could do the same job, and also force them into a specific position if they don't want to lose it.
Taking away body parts has always been one of my favorite tortures, just because they are losing something important that's never coming back. Dismembering is certainly something I want to see.

Also, I think I might like the medical students to come back at some point. Out of medical curiosity, they might just keep on torturing a girl in the most extreme ways with the goal to see how much she can take before she dies, and that's something I would love to see.