Hi .
I solved the ac v throttle body conflict problem by cutting the tb flange off and having it welded back on at an angle so it missed the brackets,
As for the vintage air I fitted a similar one that also contained a heating core.
Had to fabricate custom demister and vent tubing .
How well it works depends on how much effort is put into the vent scenario.
I was a bit slack and did not fit a gate on the demister as a result the air flow coming from the vents is a bit feeble.
However on a 40 c day its comfortable .
The idea of fitting an evaporator in the side panel is interesting.
But I was just going to fit another under dash unit to the roof behind the seats and just parallel plumb it with the first one .
I will post some pics of the engine bay tomorrow . Just blanked over the original heater box and ran the hoses around under the guard.
The next step is to fit the injected 304 4L60e and turbos.