Timing Belt Change in Progress

I've got the balance shaft belt off, the balance shaft tensioner and idler.  I've also pulled off the timing belt idler.  I see in this picture of a 16 valve engine (provided by Mr. Van Svensen) that there is a second timing belt idler that I don't have on my engine.  I don't know if it was originally missing or just not required for my engine spec.  I suspect that I'm going to need it!

 

Porsche 944 Turbo (similar layout)

Making Preparations for Timing Belt Change

I am referring to this video by Van Svenson (2010) for replacing the timing and balance shaft belts.
http://www.youtube.com/user/vsvenson#p/search/0/UvzZ2objumY
  

Replacement Pulley Parts Can Be Purchased/Viewed on this site:

Cam Shaft Belt Components
Quantity   Part Number                         Function:
(1)           944.105.241.03  Roller         Cam Belt back side tensioning roller
(1)           944.105.631.04  Roller         Cam Belt Auto-Tensioner Roller (on auto-tensioner)

Balance Shaft Belt Components
(2)           944.102.205.04  Pulley         Upper and Lower Balance Pulley (1 per)
(1)           944.102.277.06  Roller         Roller, function unknown (to me at least)
(1)           944.102.025.07  Roller         Cam Belt Eccentric Pin Tension Roller (on lower balance shaft)

Link to Clark's Garage which outlines part list

Timing Mark Must be confirmed here (TDC mark)

Timing Mark Must be confirmed here (TDC notch)

Timing Mark Must be confirmed here (TDC notch)

Other Unrelated Issues:
Cruise Control Unit
Odometer Gear Problem
Richmond, CA Pick and Pull