My 2¢
Congratulations on the '60 CI--very cool machine! Love the offset timer design!
Don't be surprised, however, if the pulsator nut refuses to budge (although without the agitator column to get in the way, you will probably be able to apply more leverage). I had this problem with my 1-18 (the Jetcone was attached with the pulsator nut as well) and had to use my air impact wrench to get the nut off. Can't remember the exact size of the nut off the top of my head...thought it was either 1/2" or 5/8".
In case you didn't know, both of the outer and inner bellows have snap rings that need to be removed before taking off the bellows itself. I found out with the 1-18 that it is near-impossible to get them off without the Robinair pliers...if you have them, more power to you!! If not, someone suggested in the past to try either a C-clamp or a screw hose clamp and while it probably won't be as easy, it should work.
Good luck!
--Austin