Suspension geometry, Combination lift?

I am going to keep this as short as possible:

I am new to TW and I have a bit of a double check needed. First I am building what some might coin "Overland Expedition" Build. I have a DC SB SR5, and I just began installing a new lift (I am removing a ProComp 3")

What has been purchased for installation:
Front
Icon Ext. Travel Front coilovers
LR UCA's
3/4" Spacers
New Bumpstops (Custom Machined, I have a machine shop at my disposal)

Driveline:
Carrier Drop
Rear Leaf shims
Diff Drop Front

Rear:
OME Dakar Leaf Springs
Icon extended Rear with remote

Tires 265/75/16 Duratracs (considering 285's)

I am running stock wheels so I have the spidertrax wheel spacers.

Now for the the question, the rear springs in combination with the front 2.5 have created a "rake" and I think a potential wheel rub when articulated on cornering. I purchased the 3/4"wheel spacer and manufacturing a modified bump stop for the front, to eliminate the rake and provide the clearance needed. I know that I could just crank the icons up, but I am very pleased with the spring rate and dampening.

Will installing the spacers with the new UCA's decrease my total travel?
or will the spacers just "move the geometry" that much lower?
Will the Spring rate remain the same?

A little background for the setup, I live in the northwest corner of new mexico and I spend A LOT of time off paved roads. This entire setup is to allow me the flexibility of still maintain some "stock" characteristics on pavement while providing capable offroad performance.

I am very interested in your feedback.