ditch the 6". in the first pic look at your tire to fender relationship, it's pretty much the same as the rig sitting on level ground. your front springs are hardly(if at all) flexing. all of the flex that you have is thanks to the rear end. your body is leaning to get yoru front tire up that high. i would put 4" springs up front and ditch the rear blocks. you might need to put an add a leaf back there level w/ the zero rate front. or you could put a zero rate in the back. you can easily find some mall poser to trade you 4" for 6" springs. you have already chopped the fenders you don't need the clearance of the 6" springs. you might even consider going w/52's up front depending on how flexy you want it. you can also loosen or cut off the spring clamps. do you have longer front shackles yet? you'll need those w/ the 4" to make it flex right.
on another note i dig the custom flat bed and the chopped and narrow front.
Im building an exterior cage around the cab this week,and it soon will be sporting 39.5"s 
thos elook tiny with the front pinched, and the lift. still looks great, and im sure it would perform awesome as well. just has a lil tweakin that could be done for the looks end. i like big tires and small lift though. 
