Optimize Roblox Avatar Model

I already have a finished character model (currently in .fbx and an open .blend session) that looks great—until I run it through Roblox Studio’s Avatar Setup. The long jacket sections start to stretch and lose their shape. I need the mesh cleaned-up and adjusted so those hanging pieces deform naturally during animation while still respecting Roblox’s upload requirements for Marketplace-ready avatars.

What I know will be required:
• Reshaping a few mesh areas—mostly the lower jacket tails—so they keep volume without clipping.
• Tweaking textures/material settings where needed to stay within Roblox’s file-size and material limits.
• Verifying polygon count, bone naming, and overall hierarchy so the package passes the Marketplace validator on the first try.

I prefer the work be done in Blender; I’ll provide both the .fbx and the live .blend. If you think an additional light-weight weight-painting pass or modest rig touch-up is unavoidable for perfect results, let me know before starting and we can agree on it.

Final delivery should include:
• Clean .blend with edits
• Exported .fbx ready for direct import into Roblox Studio
• Quick screen recording or notes confirming the avatar survives the Avatar Setup wizard with no jacket distortion and clears Marketplace submission checks.

If this sounds straightforward to you, I can share the files immediately so we can get this avatar looking flawless in-game.