'69 Dart 4spd floor pan

On a 2 door hardtop, with both side windows rolled down, it should slide right in. It did on my '70 Charger anyway. One other thing to consider is cost of part and shipping. A 2 or 4 piece set is alot cheaper to ship. A full floor is truck freight. If you order everything you need for both cars together in one order, it's one shipping charge. Probably about $90 freight. I ordered $4000 worth of metal and it was palletized on one pallet and cost $90 to my door.

Don't know why you'd need to remove the dash, I would think just the seats, carpet, and side panels. I did my Charger while it was gutted though, so maybe it just seemed easier than it is.

The benefit of a full floor is it's hard to tell it's been replaced (no seams or overlaps), and no cutting. Just drill or grind the spot welds and pop them with an air chisel.

Consider adding subframe connectors while replacing the floor, it's the best time to do it if going with contoured or through the floor connectors.

I used AMD floors in my Charger, quality was good, but the forward seam to meet the firewall only has about half the length as the original, no big deal though.