OK project goal, swap 68 dash/gauge cluster with vintage air A/C (I believe that the car was originally non A/C.) to 69. Along with this project I am also going to add the Astro Air Vents and going to a tilt column, and while everything is apart going to update the wiring and stereo.

Has anyone done this?
It has been indicated that it is a challenge, so I am wondering what the issues are?
Any tips or tricks?

Parts I have on hand are.
Tilt Column with ignition.

Parts I am about to order (by the end of the week.)
69 gauge bezel with A/C and astro air vent cutout.
Wiper switch
Dakota Digital gauges
Center vents
Astro air Vents driver and passenger (have a template from Gene for the passenger side.)

Wants that I am going to order or am thinking about
New Radio (Not because I really need it but I want more features.)
69 HVAC controls with the Fan switch (not sure if this will work with the vintage air HVAC.)

Thank you