I did the same seat swap you have (From a 4 door, they won't tip forward)
I was able to use the stock Neon sliders on the passengers side. It will give you more leg room.I made brackets out of 2x2 by 1/8" angle iron for the front, and a piece of 1" square tube for the back. Line the 2x2 up with the factory seat support for the drivers side. Bolt to floor, then drill holes for Neon front slider brackets into vertical of 2x2. The back, just line up rear sliders on
1" sq. tube and drill bolt holes. (I climbed in thru back to drill these) Now wait before putting back bolts in as you will need 3-4 fender washers so both seats are matching each others back angle (Height).
For the drivers side, Drone637 posted a Very Good DIY on the bracket mod, maybe he can do it again for you as I could not
find it looking thru past posts. There is a little variant for the 4 door brackets, "CUT TOO SIZE....TRIM TO FIT !!"
I had to grind off a side brkt, and the rear spot welds, I rewelded mine but the drill & bolt will work. It is best if you take the seat apart so grinding & welding won't mess up your cloth covering. I thought I took some pix at the time but can't seem to find them either. They are probably still on a SD card, (those things are the size of a postage stamp...so easy to loose!!)
& I didn't keep them in my laptops Pix files.
CAPT