Unless your plan is to windwalk in and suicide at the beginning of every teamfight in which case follow your dreams champ
Using remote mines as poor mans observer wards was often hugely overlooked in love you tier dota1 games. it's so helpful, and sometimes can secure a kill if your map awareness is good. outside of agh, force staff is a great item on him (used defensively, dont even think of push into suicide). always good support item and it will make enemies very hesitant to even face into certain directions as you can lay a mine trap by your tower and push them in
Yeah I mentioned Force as one of the possible extensions on him post-Scepter. I agree that it's probably the best way to go in most cases
I think 6 branches would be a good build for like late game but what do I know I'm only the next dendi.