We have not heard any response from the OP, since she started the thread. She said that she would feel more secure, having the EB, which IMO answers most of what she was asking. The other part of the question, is will the truck last long enough to warrant the expense of the EB. Most seem to think the truck will last, going by her description and mileage. While she may not NEED the EB, for the current trailer, she did indicate possibly going to a larger one at some point. In any case, only she can decide, if the confidence gained, is worth parting with $2500, since she best knows her exact financial situation.
Jerry