Do singapore suites from LAX-NRT one way. Pretty sure you have enough for that, with the online booking discount . You may even have enough for LAX-SIN, you could check. But the first flight is way longer than the latter. Make sure you get the A-380 plane, as the 777 doesn't have suites in F. Then pick a middle seat. You may luck out and get no one next with you, then they'll make up the double bed for you. I also suggest preordering the lobster Thermidor! Enjoy...