You will not notice a big difference in towing and only a little tougher to back in. Still fits most state park sites easily. I would go for it.
You can also look at Outdoors RV and Arctic Fox. Made by the same people in the same plants as your Nash. Just slight differences in finishes, fabrics etc. All the construction is the same across all their product lines so windows, frames, insulation, roofing, subfloors etc. are exactly the same from one to the next. Should give you some options as far as color choices of fabrics etc.