Aftermarket bucket seats into a bench seat car- concerns and considerations?

So my seats are on the way. I ended up going with a similar model to the one in the first picture but from Cobra Racing Seats. They were a bit cheaper. Unfortunately, the ones I wanted weren’t a commonly stocked combination so I had to put in a custom order. They will arrive early March, I gather.

In the mean time, I obtained the SCAT seat brackets. I can see that some of you guys fabricated your own brackets but I’m working two jobs and I barely have time to shave these days so this solution was appealing.

A couple more questions:

The SCAT brackets came with no instructions, of course. Evidentially, the seat sliders need to be tack welded to these brackets and the brackets bolt to the floor. Does that sound right? Has anyone used these?

There seem to be dimples in the floor Pan for bucket seat mounting points which would make life a lot easier...Is that correct?

If so, it looks like the existing reinforcement for the bench seat bolts (on the outside only, obviously) may interfere with the AMD/Repro floor reinforcements. Should I expect to have to trim that material off?

Thanks for any insights.
These are the seats (in someone else’s car)