I couldn't help but laugh. BUt I think I feel everyone's pain. I've ran into all the same issues.
If the shaft goes on easy, the links don't reach (sorry got gravel and it sucks). If the links reach, then the shaft just doesn't slip on. If all that goes well, then I can't get the front support to connect.
And if everything goes on and I am done in 5 minutes. I undo it all because something must be wrong, I'm a big believer in Murphy's Laws!
The FEL raising it up off the ground is a big help, just makes things easier. And I do the strap thing and pull it over, still not easy on gravel, and the one time my strap came loose, well I went over my hill.
If you have short arms, removing the wheel might be the only way. My arm just barely reaches in there. I never thought about changing the PTO engagement, I usually just rotate the blades with my other hand to get it to line up.