ISO Lucian Matis purple/orange size 6 dress from 2012 Spring/Summer collection

I've been searching for this Lucian Matis purple & orange dress from his 2012 Spring / Summer collection since 2019 for a special event taking place Fall 2022. I just joined Poshmark in June 2022 & would appreciate help in finding this item. I'd be willing to consider a larger size (& would have it tailored to fit). Thanks!! May a.k.a. Ms. Purple!!