Well done on your purchase Jonathan. Personally, I wouldn't go for any of the three, just them trying to squeeze the last dollar I suspect. Most important thing is the 3 year warranty. GAP cover is more important on a newer car where initial depreciation is steep. Lexus Protect.....I'm sure you're a dab hand with cleaning and polishing materials. Dints, scrapes and scratches are just every day hazards of owning a motor car, just park away from the masses when you go to the supermarket or retail park.
You've put a lot of deliberation into this purchase, I'm sure you'll enjoy it fully.
Pictures are always welcome on this site. Good luck !