I looked up the MH you are looking at. It is indeed an Alpine Coach. I've never heard of a Wester Edition however. Perhaps someone who has an '05 will chime in.
Western Recreational Vehicles (WRV) built Alpine's. They went under a couple of years ago. Most all the components are from independent manufactures so repair will not be a problem. If possible, talk with the previous owner. he can tell you about the particular unit. I will defer to owners of the '05's for particular ins and outs of that year.
'99 Alpine Coach