It is always good to have a plan but the trees do not always respond as we hope and may not give you all the options you need for such a detailed plan to come to fruition. Better to just start with a vague direction in mind and let it evolve as the tree does.
From experience trees seem to put on very little girth while growing out new leaders. I guess that is why
@leatherback has suggested growing to over 2/3 of final girth before starting to develop final leaders and branches. i do. however encourage early and frequent trunk chops as they develop taper and better options for new leaders each year. Just defer final leader and most branch development until the final phase.
I make initial trunk chops almost horizontal. Making a slanting cut will not ensure a bud will sprout at the top on the correct side. Any initial cut will need to be cut again after the new shoots have started and gained enough strength and vigour to draw sap so there is no real point going to the trouble of making a neat angle cut straight up. New buds could pop out anywhere and you will have to work with what the tree gives you so just chop and cross fingers.