Get some feeler gauges of the right size before you start!
Allow a day as its your first time, it will take you longer being methodical and rechecking everything.
Work systematically, in a clean tidy way making a note of what goes where, take pictures if needed as you go, you can then refer to them on reassembly.
I removed the radiator, no big deal as the coolant needed changing, so you will need some new coolant if you do the same.
If your careful, the rubber valve cover gasket can be re-used.
Patience, tea and biccies.
Remove the spark plugs to make T