Much penetrating oil and paint removal gun heating did NOT allow the dip stick guide tube to be removed. I was not happy to leave the dip stick free to randomly associate with the crank and pistons so the stick HAD to come out no matter how.
I tried the suggestions, but decided to mole grip the tube where I estimated the spring steel dip stick would be nestling. Once crushed, to an oval, I then fatigued back and forth until the tube sheared off checking for random debris. There was none, and the spring steel metal dip stick HAD been gripped and was successfully with drawn saving "time" in the order of "a VERY lot of hours" in removing engine, and frame and drive pulleys (ive just finished) and crank case strip down, then rebuild and refit!
Not just the approx 100 hours but mainly the effort and grovelling, that im just not up to nowadays.
The lost metal tube length is now taken up with a fuel tube spacer, and dip tube will be blanked off during use.