Version 1.3 is out, new and improved! Here's what's new:
-- All included models are now slightly higher-poly to make some of the blockier-looking parts look more consistent with the rest of the model. You can see this in the newer pictures around the boots, knees, and shoulders
-- The base game female robes had their own unique idle animations so as to reduce clipping, but a bug caused some weird arm twitching. I've fixed the animation to get rid of the twitching while still keeping the clipping adjustment
-- Fixed some issues with clipping while running for thick female robes and while dual-wielding for thin male robes
-- I have added a compatibility patch for any mods using svösh's Robe Collar version of the robe models. Because the UV changes were pretty minor, I have merged all edits by me to the models with theirs, including the higher-poly parts, animation and clipping fixes
I can't confirm whether or not the models are the same, but there is now a compatibility patch for svösh's Robe Collar. You could try and see if it works for Achilles' mod. I haven't heard back from them yet, so if there are any differences I can't make a patch for Achilles' mod as of yet.