My opinion only since you asked: I strongly suspect that your choice is not one that you can comfortably use for a month long excursion with two large dogs. It has very limited storage and very limited living space. Should you encounter any inclement weather, you and your pups will have to share that space. If you have done your homework and can make it work for you then really, that's all that matters but I would suggest that you gather all clothing, pots and pans, dishes, utensils, dog food, foot wear, out door gear such as chairs etc in an area the size of your living space and imagine where in that motor home you will put it all. If you can make it work, good on you.
Safe travels