Hello Sir
I'm totally new to this website and i will be able for two or three months to do some work low prices to get certified and accumulate some reviews , you can see my work on my gallery and watch my showreel to see the quality of my work , i could maybe retopo your model in 3D coat and fine tune it with the sculpting tool in C4D and give an OBJ , FBX or alembic Let discuss this , i will be glad to help you . Have a nice . Regards . David