I've managed some time to come back and update my core mods. They now come in the form of packaged game pcc files. You use them to replace the original game pcc files and then update your game and DLC pcconsoletoc.bin files with ME3Explorer. Instructions in each package.
EDI's 2nd Alt armor and Liara's alternate uniform, both in DLC, both modded in game. EDI has her hips, butt, and breasts reduced and Liara has the massive things on her forearms thinned up and the goofy tail on her jacket "fixed" so it sits down more naturally.