Well, what you're trying to do definitely seems bleeding edge. I don't mean to p*ss in your cheerios, but it does sound like you're trying to force things into your desired technology rather than learn and work with what's out there. It's probably going to cost you a fortune, and you'll be dealing with systems that just aren't mature yet. Things will go there, but it'll be a while. There's future-planning, then there's just stubbornness.
I've never heard of anyone running Cat 7 - Cat 6 can handle anything you'll see in your home in the next 15+ years; unless you plan on spending a LONG time there, it's overkill. Cat 7 was mainly conceived to handle 10GB over coper OVER 100M. If you're not living in Bill Gates' house, that's likely not going to be an issue; 10GB over Copper works fine on Cat 6 - and you probably can't afford the switches for home-use anyways yet - or for the next 5-10 years. Cat 7 just seems incredibly pointless; if you need 10GB over 100M, why the hell wouldn't you just use Fiber? I'm running 10GB fiber much further than that; and it's more flexible and cheaper.
A smarter strategy usually includes running Cat5e/6 to the places where you know it'll suit your needs - or the most appropriate cables (usually 18-22/2 or 4) - that's fine and always will be for smokes, motion sensors, drapery controls, etc. And regardless of what your house is wired for, you have to realize that the market will follow what the rest of the world has - which will be a need for a mix of wired/wirelss, and compatibility with what's mass-installed, which is Cat 5E and Cat 6. If your drapery controls become IP enabled, it'll happen one of two ways: 1) All your drapes will wire to a central controller via 18/4 or similar, and that controller will become IP enabled; or 2) the drapery controllers will have ZigBee or ZWave in them; they'll still receive power over the 18/4, but now at the motor there'll be a wireless controller that talks to the house.
When it comes to household wiring, it's generally far smarter and cheaper to design the house aroung good conduit systems that way you're immune to changing technology; What happens if Cat 7 never goes anywhere and people move to fiber instead? You spent WAY more than you had to and you're still up a creek.
It's worth taking another look; your method of future-proofing is still betting way too much today on a technology that may not exist later; and paying for it now; rather than paying a tiny bit more for conduit, paying for the cheaper wire today, and having the options for the future.
And last - if you get your drapes or lights working right today, with an interface to IP, then who really cares? Are you going to rip it out just for fun later? If it works, stick with it until a major remodel, when you can run the now-appropriate wire and technologies. That said, it sounds like you should look at the hardwired systems for lighting since you seem dead-set against wireless.
