Holy smokes! Must be the immortality of youth at work. I can't imagine attempting such a trip with such poor preparation.
Hell, my wife and I both have past sailing experience (well, mine's more crewing than sailing); we're going to be taking ASA 101 and 103 next weekend; there'll be a GPS/chartplotter, backup hand-held GPS and charts aboard; the PO has offered to accompany us partway, and it's a relatively straight-forward route, and still we're toying with the idea of hiring a transportation captain to get our new-to-us boat home.
Maybe we're just overly cautious. Or maybe, with so many more years under our belts, we're just a bit more aware that mortality is a very real thing.