I moved my organ w/ leslie. This is what I did and the move was a success.
a. use plenty of covers.
b. take out the tubes
c. COVER your foot pedals especially the pins
d. use 8*16 inch cement blocks one corner of the organ. this way it wouldn't move
and FINALLY, drive carefully. This is your investment. Remember, every bump, curve, and strop will cause the organ or leslie to shift.
GOD Bless.
-Al