Tires, lift, & alignment

Here is what is in my sight as a purchase in the next 3-5 months and I wanna get the right items for my needs. Also get these items at the right price.

Tires:
-duratracs 285/75/16
My question is, what offset rims would be best for these tires? on the lift selected below.
Also would adding spidertrax spacers make the rubbing worse? Or would it help?

Lift:
I want to get the 5100's, but was curious the difference going up to the 5150 or 5160, and do they pose a major advantage?
Does anyone know someone in Phoenix who will install them and realign the truck? Or two different places for lift and alignment that are reputable and cheap?

Alignment:
I know you need to get the truck aligned after you lift it, but do I new to realign it if I increase the tire size and maybe add spacers after it's been realigned with the lift?

All the help I can get with costs is appreciated, and any questions answered too