A couple questions

I have a Limited 2013 Tundra, and I have 4 questions.

1. LEDs for buttons: What size LEDs do you need to fit in the buttons on the radio, AC controls and others. I looked and I couldn't find much on the topic. The colors of the buttons aren't too appealing (the orange/amber?) and I would like to change it to the green that is found in the MFDs and switches of a military jet (looking at SAAB jets and American jets).
   
   
2. Front camera: I have seen some videos of people installing front cameras on 2014 Tundra's (but not on 2013s) but there is a front camera kit for the 2013. I am wondering if anyone has done it and is it good? Here is the kit I am looking at on Ebay.
   
   
3. Quality of backup camera: Is the lower quality of the backup camera due to the camera itself or due to the resolution of the screen?
   
   
4. 360 view cameras like GMC: After driving a newer GMC in Mexico for 2 months, the 360 cameras where always so helpful, and when going back home to my Tundra I wondered if installing a similar system would be possible. Here is a post from reddit I found about a guy installing a 360 system, and
   $233 Weivision Super Hd 1080P Car 360 Degree Bird View Surround System DVR Record Backup Camera Parking Monitoring with HD Sensor
   here is the link to the product that he used.

I posted this on the Reddit Tundra forum, but sadly no one answered, so I am trying here. Thank you to anyone who responds.