I'm really not qualified to recommend anything. All I can do is retell my story. Last February I began researching what ought to be my own first mr. Last winter the forums were full of stories about Dji component failures. The videos of building the Dji 450 and 550 kits led me towards the basic frames but I knew I didn't want those proprietary Dji motors and props. So I decided to build a hybrid. Using the Dji f450 frame and arms but figuring out how to install better motors and propellors. My craft flies beautifully. And because I built it, I'll know how to fix it when it crashes again.