IMHO you should expect to spend a few grand on a control system given your equipment. Its not just the hardware, its the programming and most importantly the time to debug. While I can personally program Crestron, or used to be able to before they changed the software, I hired a custom installer to do this for me because my time is better spent else where. What I like about my setup is I put a DVD into the 800, go sit down and let the technology fade into the background.
If you want to talk to the guy who did mine, I live in Westchester NY and he works nationally, I am happy to give you the info. Shoot me an email at z8mania@mac.com
best regards,
Jerry