24 feet versus 26' dilemma, have to decide fast

Every RV is a compromise. If you don't plan on a tow car, and just spend one or two nights at a camp spot then move on, I would stay with the 24 ft C. You will probably spend more time outside camping than inside except when you are driving it, and a smaller unit is easier to drive and park. I would look at some of the transit-based Class C's and compare the ride to a Ford or Chevy Chassis. If inside space is still an issue you can always get a 24 ft with a full wall slide.