Upgrade(s) after topper install?

I have a 2013 DCSB that recently had a Leer 100xl installed. I'm looking to remove my 2" spacer kit and blocks and install new coilovers in the front and shocks in the back and a potential AAL. Before adding any suggestions or questions, please know that:

1) I am 4x2 and rarely go off road. (run A/T's for the occasional gravel/dirt)
2) have a fiberglass topper and wanting to beef up rear suspension to accommodate extra weight
3) I rarely tow and if I do, it's a 8x10 with a lawn tractor
4) no add'l weight to front (no a/m mods/bumpers)
5) nothing add'l added to back aside from shell (i.e. RTT, decked system, etc.)

That being said, I'm not looking for cheap products, but I'm also not wanting to dump beaucoup money into this.

I'm ultimately looking for the same lift (possibly an inch more) that I had with my spacers/blocks so adjustable aren't out of the question.

Anyone with topper-specific insight, I'd appreciate it!

 

Why not just keep it as is? It looks nice.

 

I'd just get an AAL in the rear and call it good.