Factory AC firewall Pics- 66 Barracuda/ Valiant...

Pics I don't have, but the fan motor cutout is larger on the A/C firewall. The non-A/C firewall has dimples for pilot holes for the A/C hose holes. Are you thinking of putting factory A/C into a non-A/C car?
Investigating the option... some parts I have... some are available... I can build the rest. IF I wanna cut the firewall.