Maybe I am thinking about this wrong, but your spreadsheet suggests something other than valve clearance adjust. Valve clearance changes over time due to wear of the valve seat and a small amount of stretch of the valve stem, resulting in the clearance getting TIGHTER. If I am reading right, you...
https://www.zoomzoomnationparts.com/
Description:ARMATURE & PULLEY KIT
Part Number: GJ6A-61-L20A
Quantity:1
Price:$ 313.61
My local dealer wanted $510 for it...