2dr or 4dr? auto or manual? DD or not?
For that size tire, you should be good with just the spacers and BL ... might need some minor trimmin at full flex, but very minor stuff.
The 3" calmini susp lift is well designed, but many say it's too stiff (no experience here tho). One nice thing about it is it's complete in that it has a spacer for the rear diff, helps fix the CV geometry, get's the struts at the right place, etc ... your $$$, your rig, your choices.
For me, most "rocks" are never dry, so I generally loose traction before a CV goes, but I have blown a few and usually when ... at full droop, getting on it, and dropping a tire back into traction. I did pop a CV once where the front was flexed and had traction and tried to power up and over (rather than "bumping" it up and over).
I think you should add some sliders into your build plans! Even with a 3" BL, you WILL smack the rockers. In a 4dr, a gas tank lift will be a must, and probably some good bumpers. I've never hit my tank in the 2dr (at least not hard). Also, please consider a cage. That's one I've gone so long without that I think my lucky days may run out (aka a roll could KILL me).
I think you'll be happy with the spool+lockrite (I know I have been).
Another thing to consider is to go with a SAS conversion NOW (rather than invest in the calmini lift + lockers + ...) ... it'll probably run more $$$ but with some toy axels built up (perhaps including longfields) + the trailtough conversion, you would be nearly bullet proof.
my 2 penneys
