Chas, today, I'd get the SK-1 set-up. I bought the 61 note version to use on one-nighters, over an arranger, but am thinking about putting the 73 top and bottom units together with the right case. My old instruments are worn out and rough as cobs. I do have a really pretty C-3 (church organ) I got when My grandfather replaced a brand new C (this one) with a Rogers electronic pipe organ before he died. It's almost perfect, but would have to add percussion, and the case is fully closed.
I was planning to bring my little SK-1 with me on my next trip, which, because of trade show deadlines, has to be this month.
It's pretty cool. And that comes from a real hardliner, who liked but wasn't completely satisfied with he Nord.
Hope to see you soon.
Russ