As a spin on the above:
Our labor quote for installation on this is XX hours. This is based on the fact that our technicians have all attended manufacturer training on these products, and are familiar with the setup and optimizations required to get the best performance out of the system. I can tell you from our experience, it takes a knowledgable person who already understands the basics of computers, networking, etc. about 6 months to be fully proficient with products like this, and until they get there they are usually about 1/3 or 1/4 as productive as a fully trained technician.
I am sure you can research and learn the same topics, such as setting gain, framerate, determining when to use wide dynamic range, how to determine the proper pixel-per-foot data to capture the detail you need, and how to optimize the server for best performance (video data is very different from standard IT data).
For your planning purposes, you should probably take our hourly estimate and multiply that by at least 5 to get an idea of what your time investment will be in terms of learning, setting up, and tweaking the system to get the the point that our techs would have it in a couple of days. If your department has everything else under control to the point that you have free time along those lines, it might be worthwhile for you to DIY this.
After the installation, expect to spend another XX hours learning the ins and outs of using the system. We include X hours of training with our bid, which we have optimized over the years to ensure we can get customers up to speed and proficient on the system quickly.
Feel free to contact us if you need help along the way. Our hourly rate for systems we setup and install is $100, but for troubleshooting and assisting on other installs we charge $200, as it takes longer to diagnose and troubleshoot systems that were not configured to proven values and settings, and it takes us away from serving our core customers. If you damage a camera during installation, we stock spares, and our relationship with the manufacturer allows us to get RMAs quickly, we would be happy to help you out there as well on an as-needed basis, but we do not provide any discounts in that case, and charge a minimum 1 hour labor for RMA assistance.