Do you have a closet setup for a stackable washer and dryer? Do you have the hot and cold water, drain line, electric, and dryer vent all ready for an install? If not this might be tough to do without someone who really knows what they are doing for the install. It's hard to plumb and do electrical on an RV once its left the factory.
We bought a 2006 Newmar Kountry Aire and all hookups were set in a closet in the bathroom area. We researched extensively, and while in Albuquerque, NM we went to a large appliance store and bought the stackable Maytag washer and and dryer, apartment size, that are meant for RV's as well. We have had them for over a year and a half and love them! The dryer runs on 110V, yet dries wonderfully.
We waited on the units because when we went full time we needed the closet space, but since we thinned out the things we didn't need, we then had the room and added them. So much better than using disgusting RV park facilities that you don't know what has been washed in them. After I saw an article about test of

fecal residue in commercial laundrys, that was it! We bought our own. We'll never be without them again! Hope that helps!!