I can't offer specific advice as to who you should have make a coat, but be sure to do some research. There are a many "furriers" who can sew beaver skins together. The trick is to find one who can make a stylish, well tailored coat that doesn't just look like a furry potato sack with sleeves.
Dead right on this Waggler, the pattern is the most important single item in how a fur coat looks on any particular women's frame. Find someone who has spent the money with a good designer and has a pattern that compliments your Gals proportions. A good model can make a potato sack look great in a photo. We're not all hitched to women that are that statuesque. If she thinks it makes her look good she's much more likely to wear it.......often.