Yes it can be a challenge to find information since so much of the published pictures are of 70 Thermactor systems.
Looked in the 69 Engine Equipment Assembly manual and mostly engine vacuum, fuel line, fan and belt routing in that manual. There is one page with the thermactor and alternator bracket attachment. Good thing is that there are not many parts and hoses like other systems so fairly straight forward. No real tricks other than I believe I put on the pump hose on the pump before I attached it to the engine bracket after I made sure I had it clocked correctly. Only two preformed hoses to deal with so that makes it easy
Some pictures of some of the parts and engine I hope will help
From someone else's (later) car
From my early car. Note: I used the later alternator pulley rather than the correct one for this car.