If you're keeping the IFS, I would do what 4Rescue suggested. The white truck you posted has a solid front axle and therefore the lift will be very different.
If you're rockcrawling at all, I'd consider the SAS, but if it's mainly just fire roads and mild wheeling, then the IFS may be a better option and less hassle for sure than a SAS.
Another suggestion would be to look into some Alcan springs. I've had Alcan springs on two different Toyota trucks and also on my old FJ40. The two trucks had OME and AllPro suspension prior to switching to Alcans, and my FJ40 was also on OME for a long time until switching to Alcans. I've loved the results of the Alcans in every case. They will build the springs exactly for your truck and your specs. Taking aftermarket bumpers, tools and other equipment and gear weights into account so that you have a good match for what you do. I used Bilstien shocks with my Alcans and it was an outstanding combination IMO.
Good luck.