Yes you guys are right! I am the idiot of science, I have no idea what I am talking about, and I should not even be allowed to talk. Now that is out of the way I am going to CONTRIBUTE to the conversation. Looking it up further, as just a private citizen you can get licensed to get rocket engines up to O class by the time you are launching stuff that large you are looking at tens of thousands or more into the hobby. You have to take tests, it probably costs money, and you may also have to have a certain number of launches of Level 1 and Level 2 rockets(Other licensing levels). You also have to get permits to launch, and file reports after successful, or failed launches. O class engines are not that big either, I think I saw 8000lbs of thrust(Science fact so probably wrong, peanut gallery?). I could not find anything on launching larger class engines; I suspect that if you are in the group allowed to launch them, you probably know how to go about it.