I definitely think the nude AD are more flattering on you. They might give you store credit, but the only way you will know for certain is to call and verify.
I think returning the VP for store credit will be a big hassle and might rub the boutique the wrong was so maybe one of my friends will want them. I have a buddy that is the same size.
The nude AD definitely go very well with your skintone. The nude color looks more like the new beige color on you, they still look great, just not as nude as you want them to be.