No problem man, BB is Budget Boost. It's just plastic pucks on top of the stock springs to give you a 2.5" lift as well as shock extensions and a rear track bar relocation. Here's a link to the one he is running:
| TeraFlex Suspensions
In regards to running 255/80/17 (33x10.5x17) on a stock height JK, you'd be fine on-road but your'd probably rub just a bit if your fully flexed out. My suggestion would to pick up that budget boost if you have 4 door or if you have 2 door, just swap out your stock springs for 4 door Rubicon Hardtop springs. It gave me a 1.5" lift on my Jeep and I didn't need to change anything else.
Here are your options:
52126319AC for front. Some people run a lighter duty 52126318AC for the driver side to offset the weight of the gas tank. Most just install both 19's on the front.
For the rear you have two choices. Up until last year, the stiffest rear was part number 68004460AA, but now they came out with 68024461AA which is stiffer.
Most people are paying ~$130 for all 4 from the dealer.yy
Hope that helps!
-Josh