Thanks Glock,
In the meantime I opened up the hole for the 0.183" diameter guide rod to 0.189" and was able to slip the rod in fine, but without the spring. With the spring in place - NO GO. I ground a flat on the head of the rod and was able to install it by compressing the spring/rod in place before inserting the barrel. I am not concerned with the flat bothering the operation, but... if the factory hole is 0.205", I could open up the hole more and make the assembly/dissassembly process NORMAL.
I am aware of the fact that a full length guide rod may not be an improvement for the operation of the pistol, but I just don't like how the Wolff springs kink in place with the short rods. The availlability of a factory part to do the job just made it a must-do for me.
I just have to say that I appreciate this forum immensely for swapping info about CZ's and shooting in general!