Jack Romans wrote: " I could reinstall backwards, as found, even though I wouldn't do that. Re-tap correctly in english and hope there's enough meat to hold. Or re-tap to Italian"
Jack, you do have more options than that. There are at least two nice Bottom Brackets that do not depend so much on those threads. Look at a Phil Wood (As I recall they'll go about anywhere) or a Mavic. Either will do you well, and be only marginally off original. Especially if it is to be a rider and not a show bike only.
Tom Sanders
Lansing MI USA