Has Robin Vansickel ever been considered as Cherries?
http://www.charleyproject.org/cases/v/vansickel_robin.html
Missing from Anchorage, AK since 1988.
She was employed as a dancer in Anchorage, AK in 1988. She may have worked at the Great Alaska Bush Company, a strip club in the 600 block of East International Airport Road. She disappeared during the summer of that year and has never been heard from again. Shortly before her disappearance, Vansickel was caught up in a drug bust involving a group of New York
based dealers known as the "Cocaine Cowboys." The circumstances surrounding Vansickel's disappearance are unclear.
She goes by her middle name, Lynn.
She has a tattoo of two cherries on one shoulder and a tattoo of a spider on her ankle.
https://www.findthemissing.org/en/cases/20724/0
Based on post #30, I would have to conclude this is (un)fortunately not her. Although the estimated age falls in the range (Robin would have been ~48 in 2007 with the range for the torso being 35-50), the remains are believed to be hispanic. The tattoo also would appear to not match up - Robin's is indicated as being "on one shoulder" according to her NamUS page while the tattoo on the unidentified remains were above the right breast (which could arguably be considered 'one shoulder'). However, Robin is also indicated (as you noted) as having a spider tattoo on her ankle while the summary in post #30 does not have any indication of a tattoo on either left or right ankle.
Let's keep looking.