Her physique seems about right although maybe a little short?
I quickly broadened my search beyond the states I mentioned above once I realised that there are very few women who fit JD's body type, so I did a search across all states from 1983 to 1986 really just based on physical attributes. Note, I am only looking on NamUs at this point. Here are the options I found, neither of which feel quite right. I agree with MagnumPE it doesn't seem like this woman will be listed as a MP:
Shannon Potter from MD
https://www.findthemissing.org/en/cases/1868/2 - would need to account for the years between her going missing and being found but physically seems like a good match. She has some scars, I haven't seen any scars mentioned for JD but seems like we don't have that level of detail on her?
Tammy Huston from FL
https://www.findthemissing.org/en/cases/24328/14 - the circumstances don't really match and it says she has blue eyes but I think there is a pretty good physical resemblance. A long shot.