The bulidling work at the Luxor is nowhere near as "in your face" as the New York New York so I doubt it will impinge on things too much which is a good thing.
We did the ranch tour a few years back, it was ok. The best part was the helicopter ride to the Canyon itself and back via the Las Vegas strip. We also got a voucher for a 2for1 night strip flight as well which we did and was very good.
The ranch itself is just a bit silly, you see shootouts, can do horse riding, buy items from their shop, the main guy sings and plays guitar etc etc but it all seemed to be padded out a bit. Also bear in mind you are only flying over the west rim of the Grand Canyon which is still spectacular but not as awe inspiring as the south rim.
Have a great time, November should be cooler at least!!