Funny you should say that as I also have a full Kato N gauge track layout as well, although it is now relegated to leaning up against the playroom wall, points are all motorised (but not DCC just the standard Kato DC switching) and the track is DCC all fed from just one point (another one, yes I break the rules

), the Kato layout was layed about 15 years ago an I never bothered DCC’ing the points, I am sure you can now. I worked in Japan frequently and the exchange rate back then was so good I used to come back with a suitcase full of stuff.