Is this the one at Summit RV? If so, it looks pretty nice!
dadmomh covered everything pretty well. I would be concerned about the limited tongue weight of the Frontier. By the time you load the trailer you might be pushing if not over the 630# on your tongue weight. And don't expect stellar performance. It's work and it will be safe, but I'm thinking with the hills of KY, you may be looking at a new TV in a year or so.
Not trying to be discouraging, just pointing out potential limitations. Either way, I hope it works out for you!