Your truck looks great!
I have been looking at the belltech drop kit after talking to a local shop, the kit in the link below is the kit they suggested. I'm currently on 18" wheels and love them, I plan on keeping them for a little while, I don't know why, I just like the way the smaller wheels look.
http://www.jegs.com/i/Belltech/146/992SP/10002/-1?CAWELAID=230006180002524102&CAGPSPN=pla&CAAGID=15769068431&CATCI=pla-177235372631&CATARGETID=230006180003468651&cadevice=c&gclid=CjwKCAjw6szOBRAFEiwAwzixBa5dj1zBV4owaR8TB_DQTuiz0otq9YovCNP1kCzA4TmuX2HoxD2_7xoCm2QQAvD_BwE
If you don't mind me asking what kit did you go with and what did it cost to install? any feedback is appreciated