Stylized FPS Character 3D Model

I have a 2D concept image for a multiplayer first-person shooter videogame (UE5) and need it faithfully transformed into a fully game-ready 3D character. The look must stay stylized, but the geometry has to be aggressively optimized so ten or more of these models can run smoothly on a tight map without frame drops.

Core requirements
• Low-poly mesh that matches my concept art
• Clean UV unwraps ready for texturing
• Stylized texture set (diffuse, roughness, normal) baked and packed for Unreal Engine; delivered as FBX with accompanying textures
• Full skeleton rig compatible with Unreal—body, fingers, eyes, and lips ready for animation and basic facial expressions
• LODs or other performance tricks welcome as long as they remain visually faithful at close range

I will supply the artwork reference as soon as we start. Let me know your estimated poly count, typical texture resolution, and any past examples of stylized, Unreal-ready characters you have built.