Ok finially got the seats put into my car with the original bride rails.
Pics of how the seats sit in the car with the new seat frame/rails
The rails make the driver side seat sit up a bit more than the stock seat would with aftermarket seats which is better than the other rails around that make the seats sit alot lower than normal.
Only one set of rails were made, which wasnet a easy bloody job either.
New rails are made with SASS rollers and fabricated frame which is welded.
Will get pics of the rails soon.
Only 1 set has been made so i could put my seats in my car, but jig is all setup to make others.
Price looking at $250 per rail/frame which will bolt straight to the floor plan or a r33/r32 and import r31 but you might have to slightly modify the bolt locations to suit ur type of seat as recaro,sparco,cobra all have different hole centers on the base of their seats, which is not a hard job.
Please reply again if ur interested so i can take numbers down.