I always used to say, you played a keyboard, but you "rode" a B-3.
No two of them sounded quite the same, but they all "sounded like a Hammond."
I miss the experience of playing one, but I don't miss the pain of moving one, especially when confronted with stairs.
My old B-3 and two Leslie 147RV are still with the guy who bought them from me...he has them in his rec room, and everything still works fine.
I always carried a tube of oil, and a little wrench to adjust the nuts on the smaller motor for the horn on the Leslies.
The "Hammond sound" is and was, timeless, much like the sound of a piano or an acoustic guitar...it was a mood, a style, a color...not a shrink-wrapped sound that you get as a preset on a synth or an arranger.
I can understand where you're coming from,. Cassp...if only we could afford roadies....425 lbs is a little much nowadays.

Ian