AAL for RTT on stock pack on a 2nd Gen 4cyl 4x4 Access Cab?

Greetings ladies and gents of TW!

I have a 2015 Tacoma 4cyl 4x4 and am preparing to install an RTT on my bed and I want to maintain my stock ride height if possible after it’s installed.

I apologize in advance for another thread on his but I’m hoping others with the smaller (weaker) pack under the 4cyl trucks have some knowledge on this.

Here is my catch though, I have an OR set of front coils and (F&R shocks) from a 2018 on it now. So I gained almost 1.5” of lift in the front.

I honestly would like to keep the shocks the same if possible and maybe do an AAL in the rear of about 1” more lift. Is that going to be enough for a RTT being on there. It’ll probably stay on the truck quite a while as I have another vehicle I could use and leave the truck under the carport.

Just wondering what be best option is to keep the OR shocks in there. I really don’t need a dedicated lift with new shocks, front coils and spring packs. I just don’t want to be sagging back there with the RTT and some gear in the bed.

Also, any bed bars stand out as “superior” to another? I have Maxtrax pins on the roof of another car so the ability to have em might be helpful. I used to have some Relentless bars and wish I would have kept em.

Appreciated your time,
GB