Build looks solid, 140 is a good amount of Archery (as long as you wear light gear), and anything above 50 is fine for melee. You may notice frequent breakage/repairs at 100, and perhaps a slight damage loss. Again, keep the gear light if you're duelling.
Also remember that polearms will block your archery crosshairs, might not be viable to carry a backup polearm. You'd have to pick one or the other each spawn.
Overall it could work, but you'll have trouble fighting dedicated players: Archers will have more accuracy and/or hitpoints, and melee will be faster and/or stronger.