Adjust Static Mesh to UE5 SKM_Manny Skeleton (Blender/Unreal)

I have a stylized character as a static mesh that I need adjusted to work perfectly with the UE5 SKM_Manny skeleton (used by GASP). The goal is not to change the character's appearance, but to modify its proportions so it can use the Manny skeleton without animation, IK, or weapon grip issues. Requirements Import my static mesh into Blender. Import the UE5 SKM_Manny skeletal mesh. Adjust my mesh proportions to match Manny's skeleton: Arm length Forearm length Upper arm length Shoulder width Hand size Pelvis width Thigh length Shin length Foot size Neck position Overall body proportions Preserve the character's overall visual identity: Same face Same clothing Same slim body type Same overall style The final mesh should visually remain my character while matching the Manny proportions as closely as possible. Rigging After the proportions are adjusted: Skin/bind the mesh to the original UE5 SKM_Manny skeleton. Do not create a custom skeleton. Do not use Auto-Rig Pro or any custom rig. The final asset must use the exact Manny skeleton so it is fully compatible with: GASP Motion Matching UE5 IK Marketplace animations Standard UE5 animation retargeting Deliverables Blender project (.blend) FBX exported using the SKM_Manny skeleton Skeletal mesh correctly weighted to the Manny skeleton Mesh centered and cleanly exported No animation or deformation issues during basic pose testing