Planning out a lift

So i have been looking more and more into a lift kit as i start taking the truck offroading. I am looking at a 2-3" lift for the front and a 1-1.5" lift in the back. I want to keep some rake.

The kit that is my top choice right now is the Toytec/Eibach 2.5" kit. I just wanted some opinions from people that might have this, or a similar setup.

1) With the 2.5" front lift, I was going to do the diff drop kit. I have a TRD skid plate, would i need additional spacers for the skid and would it then work with the valhallas sheild plates that i currently have?

2) Would i NEED UCA's for a 2.5"? Has anyone done a 2.5 and ended up having to change UCA's later?

3) For the 1.5" lift in the rear with the toytec shackles, would i need the carrier bearing spacer kit? I heard that 1" shouldnt require it but not sure if 1.5" is a grey area or something. I would prefer not to take out the valhalla skids to do the spacer if i dont have to lol.

I do moderate wheeling, nothing too crazy, some rock gardens here and there, and i wouldnt be going too much crazier than what i have been doing with stock SR5 suspension and 275/65R18 tires. This kit is mainly to make my runs easier and faster. Eventually I want to get some Method 317's. Either the 17's with 0 offset or the 18's with a 18 offset, depending on what would work best with this 2.5" lift setup. Also, 34.5" tires and the victory 4x4 strike front bumper is in the plans as well at some point.