From our experience just a few thoughts. We went from a 24’ class B no toad to our present 34’ class A with toad. We feel the length of the rv is less of an issue than the height and width are. Dropping 6’ of length for a unit about the same width and height will not give much more ease of driving around town IMHO. We tried rental as well and found it expensive and very inconvenient. It might work if you are staying in one place, but can be a pain to actually do.
Is your toad on a dolly or trailer? If so, try one that can be towed all four down. We have found this quite easy and the two of us can hook up or disconnect in just a few minutes. Much easier that crawling around strapping car to a dolly.