3rd Gen Lift with Frankenstein parts Questions

Hello all,
I have a 3rd gen taco overlanding rig that I've been building and I've been running 31s for a while now and have decided I need to go to 33s to make my life a little easier on some of these trails.

I bought a kind of Frankenstein kit that I pieced together with my limited knowledge of lifting trucks. The part list is as follows:

Icon 2.5 VS IR coilovers
JBA upper Control arms
Bilstein 5100's for the rear

I want to be able to fit 33s with this setup specifically 285/75/R16. I found a set of wheels and tires that are this spec with those tires already mounted. The wheels are 16x8.5 with a -6 offset.

I guess my questions are as follows
Will this lift setup be able to run those wheels?
Can I run an Add a leaf and do I need to run it to make this setup work?
Is this setup even feasible or am I just wasting my time?
Will that offset and wheel size work with a 3rd gen Tacoma?

Also I know I will probably need an add a leaf since I have a lot of extra weight back there i.e. RTT and bed rack and in the future will put a bumper on.

I know some of these questions may sound stupid but its the first truck I lifted and despite all the information out there I can really seem to figure these out on my own haha.