Forking off this question, if I may, I am looking for the same thing but with a budget of around $250. If anyone knows something good but doesn&#x27;t post it because it&#x27;s &gt;$100, please reply to this message.<p>Many multirotors you see on webshops are finished and ready to fly, which tells me nothing about their repairability or hackability. There are also kits which I&#x27;d prefer (so I can learn what&#x27;s in there and how to put it all together) but they have nearly the same issue: can I replace or add components, or is this combination the only way it&#x27;s going to fly? Is there room to add components, like a missing GPS module? Or could I swap out those motors for stronger ones in a year without needing to replace 90% of the electrical system? Does it run open software that I can modify or do I need to overwrite its firmware to do that?<p>All that is a bit difficult to judge as a beginner (I can fly alright, but not build) and I&#x27;ve been casually looking around for at least three months now, coming back to this point every time I saw something cool.<p>(@OP, ph0rque, if you think this pollutes the thread, reply and I&#x27;ll edit&#x2F;remove it!)