Create Game-Ready Unity Spaceship Model

I need one original 3D starter spaceship model for a Unity game. Blender is preferred, but other software is fine if you provide editable source files and a Unity-compatible FBX export. The ship is human-made and should look like it was built on Earth. I like ships from Stargate, The Expanse, and Babylon 5. The artist has creative control over its appearance.

Requirements

Three interchangeable Small module mounting points, each with a 1.75 m diameter mounting flange. One standardized docking port: 3 m outer collar diameter and 2 m clear opening. Space allocated for 100 m³ of usable internal cargo volume. Antennas, main engines, braking thrusters, and maneuvering thrusters positioned plausibly for movement and rotation. Retractable landing gear with deployment animation. The artist chooses the number and arrangement of legs. Deliver a textured game-ready exterior model with clean UVs, editable source files, FBX, and separate moving parts with suitable pivots. A PDF brief provides dimensions and naming conventions for the game’s attachment points. Please include relevant spaceship or vehicle examples, your fixed-price quote, delivery time, and confirmation that textures, source files, and landing-gear animation are included.