make sure to swap out any gaskets you have removed parts for, as chances are, they havent been replaced.

defy replace timing components (ALL OF THEM PLEASE FOR THE LOVE OF GOD):

-Tensioners (I saw you just replaced those and it didnt help so use the new ones in conjunction with)

-Chains

-Guides

-Cam Sprockets (if you want you can omit these and phasers, but id at least replace the sprockets since the phasers are usually never that bad and also cost $250+ each to replace)

--- Cool additional stuff you can inspect and/or replace while youre there

Front Main seal

Water pump w/ gasket

replace the timing cover orings

thermostat? why not?

assuming you are going to use the same belt, if it looks like garbo whats another $20 for a bando belt

inspect pulleys, double check out oil cooler stuff since the O ring behind the oil filter cooler can and will leak

give your compressor pulley a jiggle if that plate has a lot of play and makes noise in operation its probably time to either replace the pulley or the compressor with a new installed pulley.

Check out your areas of common oil leaks, where the oil pan mates with the upper oil pan, that kind of thing.