1. Yes and it is pretty simple to do
2. I'm not sure what part of Texas you are in but you might want to find another place to put it that is climate controlled if you are going to invest the money in a cctv system.
The local place we used for PTZ repairs has closed. Pity, they were just a flat $200 on all repairs.
I found Moore's and PageTV. Has anyone used these or have another to recommend? I'm curious about service quality and costs.