Newbie from Texas

Guys couple of questions I have. I am going to purchase my first dodge product ever(being a new Mega cab Diesel)My questions are simple I think. They are as follows

1. Cheapest place in Texas to buy a hard loaded Mega Cab.

2. What is factory fuel mileage for 2500 4x4 shortbed mega?

3. for 2012 have they fixed this Death Wobble issue?

4. Nicest riding 3 inch leveling kit (will 35's fit without cutting)

5. Who makes the best overall power package for the 6.7L

Thanks in advance.

John