never mind...this is a specific question. I would send them all 30 pages so that they can see what happened every single day - whether the truck was on the road or not. There cannot be anything wrong with that. Every day off duty would be marked as off duty and signed.
However, in post-audit time, I would just summerly write on one page (to save paper) that I was off duty from an "X" date to a "Y" date and that's what I did when I was on paper logs, when returning from a number of consecutive days off duty.