My suggestion is try it without toad and add one later if you find you need it. I've had the 24' C for a few years now and I'm still trying it.
Until you get toad, buy groceries enroute between campsites. Parking the C isn't that hard in most areas. You can take C to many attractions, just be willing to walk. Consider a cab, uber or lyft for transportation in urbanized areas.
I have a utility trailer w/ motorcycle which is easier to setup than a toad. Probably before going to a car toad, I'll go with a trike Harley, Can Am type bike. These have pretty decent storage and carrying capacity and are fun in nicer weather.