We are in serious consideration of purchasing a 2015 415RW RT...however, on the lot and the majority of pictures we see have the couch unfinished in the slide....and the "extra" piece in the garage. I have some concerns that this means that additional piece for the couch cannot stay in place when the slide needs to operate. Can anyone clarify this? It could be a deal breaker for us...as we don't want half of a chair in the garage and an unfinished couch....and we are not willing to lug that back and forth through the kitchen every time we are packing up.