Bumping up this post with some updated part numbers and prices since I called around today. Looks like below are the 4 part numbers we need to order for an S54 valve adjustment job. Additionally, we will need to get a box of shims and I dont have a part # for that.
88 88 6 113 160 (superceded by 83 30 0 490 942) Holder with feeler guages
5 or 6 blades .25, .30, .35, .40, .45 (all in mm)
$31.06 at mileoneparts.com
88 88 6 113 163 (superceded by 83 30 0 493 754)
1 or 2 blade set .15 and .20 mm
$5.42 at mileoneparts.com
90 88 6 115 100 (superceded by 83 30 0 491 056) Tool for vibration damper on crank
$62.81 at mileoneparts.com
90 88 6 114 400 (superceded by 83 30 0 493 743) Magnetic plate removal/install tool
$29.62 at mileoneparts.com
[Edit- Thanks Ron]
Box of shims: 11 34 0 031 525 $346.40 @ mileoneparts.com