Dudley, You have (in my opinion) one of the best series of fox stunt 35 that they ever produced.  The boring and fits are the best that they did.  since you have already purchased a ceramic P&L assembly and a high zoot shaft, I would recommend strongly that you also spring for the fox brand hemi-kit,  or at least the stuffer backplate.  The stuffer will help extend the life of your engine considerably.
  You may have some trouble getting the rod and piston assembly off the old shaft. The rod MUST be free on the wristpin before you can get the rod off the crank.  Pull the shaft forward as far as it will go, and with the crank pin in the 7 t0 8 oclock position (viewed from the rear,  Grasp the rod with a good pair of needle-nosed pliers (with the jaws protected with a layer of masking tape so you don't scar the rod) try lifting the rod off the crank pin.  you may have to sorta roll the rod off the end of the pin.  If that don't work,  try the same operation with the crank pin at the 4 to5 oclock position.  Be very careful to not do damage to the rod with the pliers.
 Ty covered the cylinder removal very well--- do not pry  or try to use pliers there.  Some heat with a hair drier (or heat gun) will help loosen the sleeve in the case.
  If you are in the Dallas TX area,  there is a good engine man in their club DMAA.  Some of the membaer there can help you locate him.

   
 

  Bigiron