Leveling with 5100s, fixing taco lean?

Ok, so I want to level out my 2014 DCSB. These are my current measurements:

LF - 20.375"
LR - 21"
RF - 20.5"
RR - 21 3/4"

As you can see, there is a 3/4" lean in the rear. I'm planning on putting on Bilstein 5100s all around with the front set at .85. If I do this, my front left will end up higher than my left rear. The right front however should come out about .4" lower than the right rear, which is close to what I would like (1/2" lower in the front).

What are some suggestions, whether it be spacers or anything else, to correct the taco lean and come out with the front about 1/2" lower than the rear on both sides?

 

I just remeasured on flatter ground, and the LF is actually 20.5. So the ONLY lean is in the back.

 

Thats to close to really change anything, maybe get a small block and put it on the left rear, or get a tool box or something heavy and keep it on the left sed of the bed. maybe someone else will have a better idea

 

Bump. Any insight out there?