I apologize, I'm in frantic work mode at my job right now as I'm switching jobs, not leaving me much time to do much else.
I did the install last Thursday. It was really straight forward. The dome lights were a sinch. I had a tiny LED panel in one light I scavenged from my old Camry (that was a weird look - LED front Incandescent rear) which had a glass bulb with wires coming out of it. This kit had a adapter which was spring-loaded so it'll fit a variety of sizes. Our rigs are about as small as they can get. When installing the LEDs, make sure you test them before patching everything up. Incandescent doesn't care about polarity but LEDs do. Once I found the + side, I laid the cabling on the back sticky tape on the back of the panel where it wouldn't be sticking anyway and suck it on the plastic, then put the cover back on. Same process with the front dome light.
The map lights were easy, you just pop off the covers. I'd suggest leaving the map lights and doors closed as much as you can so the incandescent lights don't heat up. Essentially, you just pull out the light bulb and plug the new one in (remembering to test for polarity). Each of the doors were crazy simple, since the entire light box came out of the door. Made it much easier to work on.
I finished up and found I had 2 extra LEDs. I couldn't for the life of me realize what they were for until I was seeing how the LED color temp compared to my HID lights and saw the very yellow light coming from the license plate. Went and replaced those 2 - take the screws off and they come out like the door lights. Got them replaced and boy are they bright! They light up a good amount of the ground behind my truck now.
All in all, I think it was REALLY reasonable. 2 big LED panels for the dome lights, 6-8 LED blade lights (depending on if you get the lights for the license plate, which you should, it's a no brainier), and it was all built well. You can push and pull on the LED blade lights without fear of them falling apart. They're built really sturdily. You just have to be careful with the LED panel wiring where it meets the panel, as it's really small wire. I didn't break it, but if you bend it around too much you could.
I'll try and take some pictures of it tonight to show you. It's wonderfully bright, I'm very happy with my purchase!