Hi, welcome to the madness.
Print the catch from the naza files, the f3 one doesn't fit.
To watch it on your phone you need a camera and transmitter on the clone and a receiver on the phone. If you just want to see what the clone is seeing thats pretty much it, theres a few apps in the store you can try out, i just use a generic one but there are specific rc ones however if you want to take pictures or video you need a decent camera for that and an fpv camera to see it on your phone because to get anywhere decent live footage (low latency) you cant transmit high quality video so the fpv camera is usually a lower resolution. Luckily for small builds and with builds like these there are cameras like the runcam split which have built in fpv so they have a separate sensor board for sending fpv video so you only use the one camera. I use a cheap receiver on my phone from banggood, the image isnt the best but for lining up shots and seeing where you are its perfectly fine. You can do it on iphones but it's a lot easier if you are on android.
There's no standard camera set up for the build, do your research, choose your camera and decide if you're making your own gimbal or not then work out how it can fit together, if you get stuck there's a few of us that can help.
