I think there is a night & day difference in the ride quality between stock bars & Coils. They work best using them with no lift, and the LCA's straight across. This gives full use of the shocks travel stroke. Which, lets face it, 6" total travel plain sucks on these rigs. Using as much of that stroke is beneficial to you.
Placement of the lower brackets is key to not having any parts playing rub rub with each other. Extended lower tabs or extended lower eyelet shocks, are not needed when this is done right.
If you buy the brackets ready to bolt on, the only welding is on the gussets to frame. Simple straight 4" beads. Speaking of, there is someone making a DYI weld kit for these now. I am sure it is cheaper, as you just get the CNC cut plates, and glue it up yourself.
For stock to little lift, I would use a 2.0 shock that takes a 10" coil. As far as rate goes, 800# seems a tad high. There will be hardly any give in the suspension. The shocks will still soak up the road, but the setup will be very tight. Might want to start a little lower, like 700 or 750.
Then comes the UCA. To eliminate eating UBJ's, a BTF Uniball upper arm will remedy this instantly. For the LBJ's, find a pro-grade that can take the abuse. There are a couple aftermarket brands, that also offer a little more degree angle, to alleviate over-stressing when pushing past degree ranges, of stock joints. I am waiting with my finger on the "Buy now" button when someone makes a heavy duty fully skid plated LCA, about 1-2" longer than stock.