2017 Taco new build

Hi gang!
This is our brand new 2017 Taco TRD Off-Road edition.

We want to add:
1. ARE hard top;
2. SSO Tacoma Slimline Hybrid Front Bumper;
3. CBI T3 Dual jerry can rear bumper with swing away tire carrier; and
4. Decked dual drawers.

We at this time don't intend to change tire size.
Can we get away with no lift?
Can we change the shocks to level out the ride? or beaf up the rear springs and shocks?
I have no doubt the rear end will sag with this stuff on it and pulling our Kakadu trailer.
I want to add good components, I've been looking at Fox & Icon, not sure what to get or if I am out to lunch.

Here is the deal. I want to keep the engine, drive train, and suspension as stock as we can.
I would like to be able to pull into a Toyota dealership away from home and swap out parts and not have to worry about custom stuff especially outside North America.
Keeping in mind we will be also traveling in other continents.
Other than stock doable trails or to get into spots to sleep for the night we won't be doing any off-roading or 4 wheeling that requires a lift and bigger tires....we have a modified 05 Rubicon LJ for that stuff.
Our goal is to see the planet. We are trying to minimize weight best we can for gas mileage.
I'm not new to modifying a vehicle, but I am new to the Toyota world. The Taco is a far cry from my Rubicon LJ, TJ, CJ or ZJ or an M38, Iltis, G-Wago for that matter.
I am not going to pretend to know what to do with a Tacoma or what is best.
I would rather learn from other people an easy lesson than to learn the same lesson myself the hard way.
Any ideas?
Thanks much me and my wife appreciate your thoughts!!