The Space Plane Corporation
Video:
Performance Summary:
MTOW: 250 tons
Dry Mass: 75 tons
Useful Payload: 5-10 tons
When considering 500km ISS orbital insertion and de-orbit fuel burn the useful payload does shrink to between 5-10 tons.
Telemetry:
https://drive.google.com/file/d/1zLmh4odwt-ejBSnMvJu-8BUq4YvuFtzn/view?usp=sharing