You can get to lvl 33 just by doing a lvl32 PoE and upgrading one exotic item. Then you are ready to do lvl 34 PoE and get one etheric light. Next week, run 32 again to get another armor core and then 34 to get a second etheric light. Shouldn't be more than six hours over two weeks. Much easier than the last dlc. If you have multiple characters you can do it faster.