E body floor vent solution

I have a restomod 70 Barracuda. Heater box was removed to install wiring and computer on inside firewall (note all the wiring is coved by a custom panel). Car was a factory AC car so I have no floor vents and heater box openings are sealed. Looking for ideas to put something in kick panel area for floor air circulation. Could use home heater floor vents but would like something better? I plan to add an under dash AC/Heat/ Defrost unit as well.

307751971_10218718978800204_3499859825457743969_n.jpg

IMG_5202.jpg
Author: viperakon