Wow, that is all I am starting with...wow.
Ok, for the technical stuff.
-What brake lines did you switch to? No way factory length will hold up to that much lift and be able to flex, especially with the IFS kit. I did + 2" on my brake lines...I would guess you need +4" or more.
-Did you put any kind of gussets in the extensions for the upper control arm drops? Thats a very tight angle to have no extra weight bearing supports.
-Did you get some super extended length shocks? Otherwise the first time it brings a tire off the ground, you may here some sickening pop as all the oil/gas comes out of your shock
-Be careful dropping your diff 3", that bracket is gonna have to be heavy duty. If you can fab that up, you can fab up the brackets. You just just cut out a rectangle, and weld in a new plate that moves the holes down the desired length:


I have to admit, it looks pretty sweet, not my cup of tea, but still pretty bad ***. As for finding these parts lying around, diff drops you will have to make yourself, as well as a new crossmember. IFS kit has to be ordered from BigmeatVX. Gears...Matt at Independent4x.