We have a 4 horse trailer with a 10'short wall. I was wondering what everyone is running for power? I understand you wont be able to run the ac and the microwave at same time. I was thinking about the Hondas, but didnt want to buy two 2000's and link them. Is the 3000 big enough or go with a 4000 but how much louder is it than 2 2000's?