Thank you Craig and M_G!
I only use my SK2 at home as an "real Hammond organ", and do not use the extra voices. When I need a piano, I use the Ravenscroft 275 and when I need Rhodes or Wurlitzer I use the Scarbee Mark I and A200.
My only goal is to get the best clone as a substitute to a real Hammond organ, and I do regret a bit that I did not buy the Mojo. The market for clones is not big in Norway, so I think it can be hard to sell the SK2 and the Vent II. That's why I'm looking at the HX3 / GSi Gemini.
I understand that all the buttons, drawbars, bass pedals and the expression pedal on my SK2 will work on HX3, so I strongly considering buying it since I only need a new "tone wheel generator."