No need for that flippant response. You do not know the work I've done, so don't assume I don't know what I'm talking about. Talking about "man-hours" tells m

No need for that flippant response. You do not know the work I've done, so don't assume I don't know what I'm talking about. Talking about "man-hours" tells me you think of software engineering like an assembly line, which it is not. There are whole lot of factors that might influence the time needed for such porting; the keyword in my comment is "similar". If the new language is a superset of the original language, minus a few warts, I'm not sure what should take so much time. For one thing, the architectural design of the packages (which probably took most of the original effort) remains the same.