25 people will need at least six cars unless you have Suburbans and what not. I would think anyway.
Shuttle is $225 to $250 per car PLUS you need to leave $80 to $100 for them to fill up in Salmon = $1,800 on the low side. If you can jam everything into four cars then it's kind of a push. And it will be tight without factoring in a full week of river stench crammed into an SUV. On the bus, we make sandwiches, drink, make a nest in the back of paco pads for snoozing....it just really works for us. And the best part....I don't have to drive coming off the rivrer. So my real or perceived sobriety is moot.
Just thought of something. Unless you have two permits, 24 is the max on the permit? Have you worked this out already, or did I miss something?
If you have six or seven of your crew that doesn't mind doing the shuttle then you can send six cars, come back in one and then only pay full shuttle for the one car to Cache.
That puts six of your group in a car for 11 to 12 hours of driving time the day before launch to save $50 per person.
Don't convince anyone, tell them this is the way it is. $50 to have everyone together and getting to know one another, work together rigging, learning everyone's boats and the "should-be-mandatory-before-every-trip" hour or two of throw bag tossing.
The other thing is if you have folks coming from all over to keep the six shuttle drivers from coming in at midnight in the return car, they need to leave by noon or so and then things have to go perfect.
Just some thoughts and keep in mind I hate to drive shuttle. Have done. For $50 I ain't driving 11 to 12 hours.
When is your date??