You are over thinking all this and would do better researching here. You would also do better to go to bricks and mortar shops, find something you like, fits and meets your aspirations whatever anyone thinks of them here
If you want "the perfect suit" then bespoke is the only way to get it - and probably the second one. Content yourself with something that fits and, when you are playing leading roles in something or another go bespoke. No one will notice the difference the acting trade projects itself as very casual save when dressed by someone else for a production.