[%]Hey Matt, I used flat bar (about 4-5 mm) to put my seats in my Cortina, i'll check my Escort as i they were in there when i bought it.
If you use the slides that are on the seats, Cut the required lengths, one to go across the front and one for the back, drill the holes in the appropriate positions to mount them to the floor, bolt them on, place your seats on top then mark and drill these ones, bolt your seats on.
If your going to use the original Escort slides, Remove the slides from the Escort seats and bolt them to the floor mounts, Cut the required lengths and place them across the top of the slides. Mark, drill and bolt them on. Place your seat on (minus the seats original slides)then mark and drill these holes and bolt your seats on.
By the looks of it, in the photo, the front holes on the seat slides are angled, so i'd go with using the Escort slides.(nice toes by the way haha)
It's sounds simple but there is a bit of mucking around.
You could get tricky and use both sets of slides and have twice as much movement LOL[88]
I'm due to fly home Thursday evening and will take some photo's for you over the weekend.
Hope this helps, Cheers, Richo.