Hello there Loris,
Welcome to planDisney and thanks so much for your question! It sounds like you're planning a family trip to the Disneyland Resort - how exciting!
In terms of finding which attraction will be down for refurbishment during your visit, your best bet would be to check the
Hours & Events Calendar. This is a really helpful page that will not only show you that information, but also park hours,
Early Entry hours (if you're staying at one of the
hotels of the Disneyland Resort), and entertainment options during your visit!
This calendar shows information about six weeks out and is updated daily, so currently you can only see until about mid-late December. If you check back in a couple of weeks though, you'll be able to see the days of your visit!
As for your son-in-law, this was the reason that I was excited to take your question since I am a fellow tall guy! It sounds like your son-in-law has about three inches on me, but I can tell you from my experience that he shouldn't have much problem fitting on most attractions. The two attractions that come to mind for me that I can tend to have a little harder time fitting (at least at first until I settle in) are the
Matterhorn Bobsleds and the
Autopia cars.
For the Matterhorn Bobsleds, it's usually just a bit challenging at first when I step into a ride vehicle, but the places where your feet go are actually pretty deep so once I settle in then I fit just fine! As for the Autopia, my son loves the idea of driving these cars but after bumping into the guide rails enough times, he ends up asking me to take over the wheel! On this attraction, sometimes my legs can get in the way when I'm trying to turn the steering wheel.
Other than those two attractions, I haven't really had any other issues with being a tall guy around the parks! I'm sure your son-in-law - and your whole family - are going to have an amazing time during your visit to the Happiest Place on Earth.
Thanks again for your question, Loris! Come back and see us here at planDisney if you think of any other follow-ups. We'd love to help!
Have a Magical Day,
Greg