If I were you, I'd get some filters (or the original filter box) on those carbs.
I don't know how many miles you've run it with open trumpets, but seeing that tends to put people off, wondering just what the engine has sucked in over the past x thousand miles.
I certainly wouldn't run without filters of some kind.
Even the Webcon-type filters that fit over the end of the trumpets would help, but not as good as the original, or, say, a KN type filter.
Most potential buyers will wonder about that.
1963 Giulia Ti Super Rep