For a couple of reasons, I installed a 4-gauge overhead pod first, hope to put in a 4-gauge pillar pod sometime down the road but for now I like this setup. Plus I have my CB mounted up top in the overhead console. So I was installing the gauges, and cleaning up the wiring on the CB and since I was doing all that I figured it was the perfect time to install the Recon lights.
Honestly it shouldn't take any more than 2 hours tops I would imagine. I have done it several times and can get to the cab lights with my eyes closed lol. You won't have to Completely remove the headliner but everything back to the B-pillars so you can pull it down enough to get in around it. Might need to make some crazy contortions with your body but doable.
There are 2 screws and a wiring harness for each sunvisor.
1 screw per sunvisor clip, and 2 push plugs to pull out
If you have the overhead console, it should pull down without any screws
For the A-pillars remove the 2 covers on each handle and then pull out the 4 bolts (per handle) which are 8mm I believe. Then the pillars can be pulled down, just a few clips holding them in and should be able to just lay down on the dash.
All that is left should be the "oh sh!t" handle on the passenger side, remove the 2 covers and I believe its 2 small bolts hold it on again 8mm or so in size
After that I found it easiest to pull down the weather stripping and just let it hang.
The headliner should have some flex in it, even if you put a small crease in it while working around it, the crease should go away when it goes back up.
Looks like a mess but as you can see I got a few more things ripped out than just the headliner stuff