You will find answers to all of your most common Electrical Services related questions located here.
No part of a useable wall will be farther than 6 ft away from an outlet except in halls.
Use Lutrons compatibility tool http://www.lutron.com/en-US/Pages/LEDCompatibilityTool/Compatibility.aspx
Lutron offers 4 different levels of lighting control systems they start at about $900 for 10 dimmers all the systems have timers and vacation modes.
Apple homekit, Nest, Sonos, Alexa, Josh, Google assistant, Honeywell, Samsung smartthings, Ecobee, Autonomic and Casatunes.
There are 2 different things to look at first is the colour temperature 2700k to 3000k is closest to an incandescent bulb, 4000k is closer to natural day light. The other thing to consider is the CRI and R9 of the bulbs the closer these are to 100 the truer the colours will look