I'm curious to know if this was solved for you? I have recently just come back to SL and decided to give my avie a makeover! I've switched to the Lelutka EVOx Avalon Head, Legacy Petite body and found a Tres Beau skin that I loved. In the instructions for the skin it said that the perfect match was the Velour Sunkiss, which I then purchased, but need to have the Ipenema body for it and as soon as I add it, my head and body don't match and have a cut line!
https://gyazo.com/e757abae899beb4032e293b1d912871a