Just to point out that in the 2nd-last photo, I reckon the template is covering your own hair too much.... your side /back hair there looks good /thick ..... if you go with that size of template, you`ll end up shaving some of that hair ` out of the way` to make room for the system..... it would be a shame to get rid of good /strong hair..... many guys who wear toppers actually make the template slightly smaller than the bald area /area needing coverage, at the sides and back....this ensures that you done`t have to shave ` good` hair and a small ` gap` between the edge /perimeter of the system and where the ` good` hair is, means you can easily stretch the lace a little if you want /need to, when attaching...... I`d keep as much of your own hair as possible ... it`s better to have the perimeter not overlapping onto growing hair....adhesive materials will only stick properly to bare skin.......
in relation to the front hairline ..... just trim it to the outline of your own natural hairline ...if you frown, you`ll see the line/crease where the forehead skin meets the scalp skin [ only the forehead skin moves] ..that`s your front hairline.... hope that helps.