Hello, Im very happy to hear that. But you must understand that my crash course is not finished yet. I allow you to translate it to Spanish but I must see the result of your translation to point you in future to parts that I/we add to the course.
There is also a short introduction to Lojban that you are also free to translate. It won't be changed (although new slides might be added but they won't touch existing slides: https://docs.google.com/presentation/d/1Yrxt9gAtqA_oSDD76Toq8VLSZjjOxJ5rkKsxFs3Cw8E/edit?usp=drive_web )