We know that #013 was just sold (?) by AutoSalon but that could have happened after the issue you quote was printed. #003 would be a good buy, though I cant see it on the weblink you added, it does state they are after a Mclaren F1. In their sold section, It states they have sold #013 (see above), #028 and #063 - would love to see proof of those!
the market is strange with some silver F1s which pop up with different mileage, year etc with the same pics.
For example, which are the two F1s to sell on www.ferraribuy.com and are they in europe ?