Vintage Gunne Sax Jessica McClintock dress

Reposhing this item I purchased from @jwurzbac. Loved it, but it does not fit me. It’s a 1980s size 5, which is quite slim in the torso. My guess is this was meant for a teenager. I can get it zipped only midway. I typically wear a modern 2 or 4 and am 5’8” with a long torso, so you’d need to be slimmer in the upper body than I am. The underbust measurement is something like 26", whereas my underbust measurement is 30". As you might imagine, that's a big gap...sad face. Questions? Leave a comment below!