Can I ask why you'd need a titanium, steel or what have you type of armour with a bullet proof visor?
It's not exactly gonna be light and easy to move in, especialy after a few hours trooping or at a con, impressive as it may be. There's also little that can be done in metal that can't be done in plastic or fiberglass. Now if you want a set that can be used to rob a bank... well that's different, although your getaway vehicle will need some serious grunt to cope with the weight of you in armour!