I am trying to decide between getting two EU 2000Is with a parallel kit or one 3000I. I was really leaning towards the two EU 2000Is but have come across a good deal on a 3000I. My biggest concern is if the 3000I will keep up with my my 5th wheel. It has a 15,000btu AC unit plus the other normal features. Anyone have any input on if the 3000I will handle the 15,000 btu AC unit or not?