South of England to Patagonia - How long?

[DeckScrubber]

Is dreaming allowed on this forum?

OK, thanks. ;-)

Charting a direct route from the South of England to Southern Chile measures about 7000 NM. Sailing a boat averaging 100 NM a day gives us a duration of 70 days. I don't have any experience of diagonal crossings of the Atlantic, sailing from one hemisphere to the other. Any idea (roughly) how many extra days/weeks the extra tacking and doldrums could require? I would include just one or two stops on the entire route (e.g. Cape Verde and somewhere along Brazil's coast).

Any insights from people who have done such a "passage" would be greatly appreciated.