'69 Dart 4spd floor pan

Last night after gutting out the interiror, I see I need new floor pans for the dart I just picked up. (not a huge surprise)

What would I have to remove to get a full floor pan inside? windsheild and dash instruments?

I'm thinking of getting the side by sides floor pans since the hump is in, what appears, solid shape. It seems these might simply fit through the door?

I can post pictures but my main question was the entry of the pans.

Also, lets say I can bring the full floor inside. It seems I'm going to be cutting it up to install the 4 speed hump anyhow. So either I cut out the 4 speed hump or I cut the existing floor along the full hump to install the side by sides???
Does that seem right? I guess I don't see what is gained (maybe a little less welding/cutting with the full pan?)

Sorry, new at this and decided to do it myself since I have the room. tools, i'll worry about along the way. And... i have a charger I know will need this same thing when I come back to it.

Appreciate any feedback.
Thanks,
John