Reddit reviews LHI 280 Race Quad ARF 280mm Carbon Fiber Frame Kit + F3 6DOF Flight Controller + MT2204 2300KV Brushless Motor + Simonk 12A ESC + 5030 Propeller Prop 2-3s ARF Kit FPV Quadcopter QAV250 Pro

If you arent dead set on the parts you have already choosen you may want to consider something like this.
http://www.amazon.com/gp/product/B00YACIDNU?keywords=emax%20250&qid=1451850415&ref_=sr_1_1&sr=8-1
I bought one of these when I build my first quad recently and was quite pleased with it.

This kit does not include standoffs for mounting PDB and FC though, i just picked some up from ACE hardware.

I'd rather go with this kit then: Amazon UK

The rx/tx isn't too bad, but maybe you should get a 9x. Swap the charger for an imax b6ac. Get 35c 1500mah 3s for starters.

Edit: lipo alarm is a must without telemetry, shrinkwrap, double-sided foam tape, and a decent soldering iron are a good investment as well

https://www.amazon.com/LHI-Carbon-Quadcopter-Controller-Propeller/dp/B00YACIDNU

This is the exact kit I bought:

https://www.amazon.com/gp/aw/d/B00YACIDNU/ref=mp_s_a_1_6?qid=1452618160&sr=8-6&pi=AC_SX118_SY170_QL70&keywords=LHI&dpPl=1&dpID=51vHolT01fL&ref=plSrch

I'm really happy with the frame, well made, everything lines up great and it comes with some spare bolts. The motors seem fine. I'm concerned about the ESCs though. They are definitely on the cheaper end. They say "Simon series" on them, but they don't use SimonK firmware. I had no issues with any of the parts. It's my first legitimate quad, but I think it flies great. (At least compared to the micro drone I fly indoors haha)

The kit also comes with a CC3D FC, but I ended up buying a Naze32, which I have installed currently with Cleanflight firmware.

I also installed the Fatshark predator V2 set with some immersion CP antennas. I think this set is awesome, even though it's a "starter kit". Also, it's my first FPV system to use, so I can't compare it with anything else.

Furthermore, I installed a micro MinimOSD, which is amazing! It took some work to get it working properly, but I love it.

Hovership LEDs which run directly off the 3S battery like most of them.

Check out a few [drone kits packages] (http://amzn.to/2iqmrhX) on Amazon and use that to see what frame size and motors together along with how much thrust, power, etc.. is needed to handle what size/weight. You can then check out websites like UAVhaven or HobbyKing for all the specific parts you need.
Then head to a microcenter or an electronic store for the breadboard and work with the folks at ArduPilot information on setting up the flight computer and signaling.

Perfect!!! I decided to use that!

Can you let me know if you see any problems with this list?? Anything I can improve?? Anything I don't need??

Frame, PDB, FC, Motors, ESCs

Extra XT60 Battery Connectors

Props

Standoffs

2mm Gold Bullet Connector

Cable/Zip Ties

DIY FPV Kit

Tx/Rx

Tx/Rx to USB Adapter

Drone Battery 1 (heavy) 2200mAh

Drone Battery 2 (light) 1800mAh

FPV battery 1500mAh

What's the cheapest way to be able to get voltage to show on my FPV setup?

-Would I be able to use this voltage checker/warning buzzer?

What about a cheap lost model buzzer/discovery buzzer?? Can I use a switch on my Tx to make the alarm sound??

Is it overkill to get 3 batteries total?? 2 for the drone (So I can keep flying when one is charging) and 1 for the FPV reciever/display?

Thanks for the help!!

Will do! It's supposed to be a Nighthawk 250 but it seems to have a couple of minor piece differences, mostly the supports. Amazon Link. I don't really care about how long this lasts, I went into this build expecting it to be pretty cheap and just to experience building it, I'm going to a much better one eventually.