Roblox Studio Map with Customized Characters

Hi, I need help with a Roblox Studio project.

I will send you a Roblox Studio map/project file that contains multiple voxelized 3D character objects.

Your job:
- open the Roblox Studio map/project
- take all voxelized 3D character objects
- import/export them properly into Blender
- edit/recolor them in Blender
- keep the same general character inspiration, but change the colors/design enough so it is not an exact copy
- make them look clean, polished, and good quality
- keep the voxel/low-poly style
- keep the models optimized for Roblox, no heavy geometry
- do not increase the polygon count too much
- make sure the colors/materials are visible correctly
- export the finished models back for Roblox
- put all edited models back into the Roblox Studio project
- send me back the finished Roblox Studio file

Important:
The models should still clearly feel inspired by the original characters, but they must not be exact copies. Please change colors and small visual details so they look like original/edited versions, not direct copyrighted copies.

I do not need animation, rigging, scripting, or a new map.
I only need the existing voxelized 3D character models edited/recolored and placed back into Roblox Studio.

Please do 1 test character first before editing all models.
If the test looks good, then you can continue with all models.

Before starting, please tell me:
- if you can open Roblox Studio files
- if you can work with Blender
- if you can export/import models back into Roblox Studio
- how long it will take
- your total price for the full job