We live an hour in a half from the club venue and are considering a break from all the car travel and trading it for combine travel. My daughter is 15. She has been an outside hitter for 6 years but is transitioning to Libero. (will play Libero for her high school this next fall).
Normally, it would be hard for me to validate substituting private lessons/combines for club volleyball just because of the sheer volume of touches and game experience which would be lost.
But, your daughter's position (Libero) is one which typically tends to engage actively in the recruiting process later than all the other positions. In light of your drive time to club practice, taking a year off this year as a 15 year old Libero, should not have a huge negative impact.
The combines will provide her recruiting exposure and feedback, while the private lessons will keep her moving towards skill set improvements. I would augment the private lessons by just getting into the school gym with friends or family to play double or triples for fun.
But, as a sophomore, it would be important for her to get back into the club volleyball routine if she wants to accelerate her abilities and start get into a few college program's recruit databases.