That's pretty much what I have except the wires all run from the whole house audio and tv to the basement then back to the main floor in a distant headend cabinet. I simply used a Sewell In wall IR repeater system for the components. You have some extra challenges though with the game system and keyboard. I don't have either of those so don't know if they are IR or? As for the receiver then, I can control mine with my tv remote because of CEC, the AVR remote (of corse) and the Iphone/Ipad/Android AVR app from anywhere within wifi range. The App also can control the TV and of course the TV itself also has a phone app too. I really only need my phone to control most functions. The only thing that I can't control is each individual set of speakers in each room and so then I have volume control knobs in each room. I'd have to have a true whole house audio Sonos or similar system to do that. The era of wifi apps has made control much simpler.