So I got the new springs installed, teraflex 3" springs, as well as the adjustable rear track bar.
I did not use the retaining cup (or whatever its called) in the rear, that mounts above the coil. This kept the front and rear level. I'll hold onto these in case I need them after I eventually install a heavier rear bumper VV
Also because I couldn't get them off of the Teraflex budget boost spacer
So the spring hits the upper perch like this
I would guess (I was too absentminded to measure) that I netted an extra 1-1.5"
I think as she sits, she could fit 37s without issue, other than needing a regear.
I did not adjust the front LCAs, hoping that the difference would be negligible. I'll put a few miles on her tonight to help determine whether I will need to do so. Getting the extended bump stops back in was a PITA by the way...I ended up soaking them with wd40 and wedging a piece of 2x4 between the coils and under the bump stop, then jacking the axle up until it forced them in...hopefully this little tidbit helps someone out down the way
EDIT: I have my stock unlimited rubicon with trailering package coil springs (the stiffest stock) as well as all of the budget boost spacers and the rear track bar relocation bracket available for sale. Someone wanting to add on a budget boost would need only extended bump stops and rear sway bar links. PM me if interested.