Tarantula for Space Crusade (Starquest)

I am missing some of the miniatures from my Space Crusade (Starquest in Europe) boardgame, so I decided to print them. I modified the Space Marine model and the sentry gun model to look similar to the original tarantula, and they can be stuck together easily.
Space Crusade is not produced anymore and the miniatures are very difficult to find, so I hope I'm not infringing any copyright. I'm just trying to help people playing this beautiful game.