Blender Character Modeler & Rigger for Basketball Game

I'm looking for a Blender character modeler/rigger to convert my existing Roblox basketball character into a smooth skinned mesh while keeping the same overall art style. The current character is built from CSG parts, but I want it recreated with proper topology, an armature, and weight painting so joints such as the elbows, shoulders, knees, wrists, and fingers bend naturally instead of looking like separate blocks.

The finished rig should be fully compatible with Roblox Studio and ready for animation. The goal is to achieve smooth basketball animations such as shooting, dribbling, passing, dunking, and defensive movement while preserving the proportions and appearance of the original character. I will provide reference images of the existing rig and explain exactly how I want the character to look and move. Experience with Blender, skinned meshes, armatures, weight painting, and exporting assets for Roblox is required.