FWIW,,, I have a lot of experience working on engines,, I do heads on cars at the track between sessions.. WHen I have to,, but a race car is much easier to service...
2007 Honda fit ,, 4 hours to get the head off,,, 2.5 to get it back on.
Had to rent the honda crank pulley wrench to tighten the crank pulley. (Free from Oreilly)
Other than that my basic hand tools were fine.
Cost 65 bucks to have the head machined and inspected.
The cost of a good service manual pays for itself over and over.
Shortcuts AREN'T! all the stuff folks do to avoid the timing step is just
over thinking a problem.
No way I'd go to the trouble of a head removal without replacing the
expendable parts like the timing chain/guides/tensioner/Front main seal.
YMMV