Sanden unit?
Ash trays different, yes. Perhaps due to proximity of original center vent duct work. Looks like some clean work there.
Sanden 508
The ash tray hits the demister-floor vent
I will try to do a list once every thing is finished of parts I think people forget about but are a must to grab off a car if you found a wreck with A/C and wanted to fit it into a non A/C car.
Like the ash tray, A/C blower motor switch, dash to hand brake brace, A/C blower motor switch wiring harness. To name some of the main items that will save you time and money.