The recent issue of N-Scale magazine has a small "going out of business sale" ad. It has been some time since I was able to get to the store back East, but even a couple of years ago, one could tell that Ken was slowing down.
His store phone is listed as 978-443-6883. When I was last there, the store was open later in the afternoon only, so I don't know if the number is answered in the mornings. Perhaps he has some help with the store sale.
He was always pleasant to deal with. I wish him the best in his retirement.
Henry