@carmelmodelrr I have that full set (16-car, 8 foot long total

), fully DCC'ed. You need an EM13 motor decoder and FL12N which is a pair of decoders for the lights at both end. It took me 5 minutes to drop the decoders in. No shell removal, frame milling or taking apart, etc.
It runs just fine on any US N-Scale track. I often bring the set to shows and run it at full speed (Digitrax throttle pinned to 99

) on T-Trak, even on inside corners without it flying off the tracks.
You can add interior lights but I chose not too.
It's breath taking and often attracts a lot of attention.

The prototype is also breath taking as I have ridden on it a few times.

Let me know if you have any questions. I bought my set in Japan.