Just an idea here guys. But the "CP Regatta" is on Aug 13 &14. I went to it last year and it was a great show, lots of boats not just CP's but everything, nice rigs everywhere.
My suggestion is that IF this trip is being moved to Big River that you guys maybe think about pushing it out to 9/13 and 9/14.
You can boat down to where the Regatta is going on from Big River and there is a gas pump on the water along the way.
Not trying to change this all up but just throwing out an idea for you guys.