Engine timing parts?

Gearing up for my engine drop and reseal, Im getting together some parts in the shopping basket for what I may need (upper O2 sensors for example as preventative maint).
I need to measure using VCDS the cam to crank phasing. Talking to the S8 program designed, he said the phase angle OBD flag was moved to 8 degrees, past that you get a CEL, with 8 degrees of out of phase being already far past the chains useable life.
So naturally I am looking for chains, all 4 chains will be $480. Then I got to thinking, what about the adjusters…No where on the audi parts websites so i see the timing chain adjusters/tensioners listed. Anyone got a link or some PNs?

Will measure my phase angle this weekend though so see if I even need to worry about this. (channel 90-93 IIRC?)