Sounds like a very good well thought out plan, please keep us posted on what works and what doesn't. I'm look forward to hearing progress reports.
2) The light in the room with the tanks stays off but I will turn it on when it is feeding time to help trigger feeding response.
With my RES I have been turning off the filters when I feed bloodworms as the feeding trigger. Once the bloodworms have been cleaned up I turn the filters back on. I do this more for the practical purpose of keeping bloodworms from being sucked into the filters before they are all eaten.