Here are a few more shots. I've had the floors in and out, all day

Making some trims here and there, drilling out some spot welds to fill in later, and sanding down to bare metal all around the hole so it will weld in well.
Here are the floor boards primed and set in, not clamped yet.
The floors are sagging in the middle, The spring clamps I bought aren't doing the job, so I've got to pick up some better stronger ones.

Here is what they look like when you're not under the car.
Does this all look pretty standard till I hook some clamps up? The side to side gaps have evened out and look like the pinch welds will weld up nicely once clamped.
Thanks again everyone. I just want to be sure it all looks good before I start to weld. Measure twice cut once kind of deal.