I'm not running bump stops, and I haven't trimmed mine. I bottom out on potholes, speed bumps, etc. I got the kit off a member on here like a year and a half ago, and it sat in my closet until last summer when I finally got it in. The camber kit came from an online store, and it was like $40, I can't remember where, but hopefully there's a member here who knows. It cost $85 to have it installed and have everything aligned to the way I wanted it. I won't lie, the ride is rough and bouncy. My dad likens it to a Cadillac's, as I still have the stock shocks and it's nice and bouncy, but I haven't felt the need to upgrade yet, maybe in the future.
On the tail lights, I just used the glue that was there; when you pull the cover off, it shouldn't be gooey or messy, mine came off pretty cleanly, and when it was time to reassemble, I just heated the pieces up again, and mashed them together, and held them together for about 5min.