Started with the passenger seat and to my delight the rails on the liberty seat were bolted on. The MY seat rails are also bolted on so things were looking good. So took the rails of the My seat and put them on the Liberty seat.
Original Liberty seat.

No rails

My seat rails on

The my rails bolted to the front holes on the liberty seat but I had to drill new holes to bolt the rear of the rails into.
I then sat the seat into the car. The side nearest the transmisson tunnel fitted perfectly. The side nearest the door not so good.
Door side front

Door side back

So I just re drilled some holes to suit,
The drivers side was to so easy as the rials were attached differently due to the height adjustment
Front rail mount

The MY seat rail bolted easily to this. I had to grind off the rear of the liberty rail to modify it to suit the MY rail.
Back section to grind off

Gound off piece installed back to liberty seat.

I was then able to mount the MY seat rail in the same way I did on the passenger seat. I then installed it into the MY wagon in the same way that I did on the passenger side.