I have a friend who gigs all the time with his B3 ansd a leslie 145. The B3 is on the wood dolly (permantly) and he moves it by himself!
 
I have moved a few and it is not fun.

I met Ike Stubblefield a few years ago.  He has a BUNCH of B3s that he keeps stored all over the world.  Whenever he does a gig, he just pulls the nearest one out of storage!!!