Topic: Inside pillar to pillar distance?

[hotwheels]

Does anyone know what the actual dimension is from the inside door jamb pillar to inside door jamb pillar, just behind the door? The floor was completely removed from this 31 ford, i have the back light panel and the firewall, but i need to make sure since the entire floor structure was removed, that i can get everything fairly close when i start pulling things straight....Here's a pic

[miraclepieco]

Isn't Mike at Cornfield Customs working on one right now?  He can probably help.