Help with 29 Sedan Front Seat Riser

forjack842

All,
Finally got to the point of installing the front seat for real. The seat came floating when I got the car. Double hinge and adjuster were in the parts box. It appears that there is a riser piece that attaches to the dual hinge and to the seat bottom metal. I am missing this part. What would really help is a good picture of the this piece and maybe a few measurements so I can have one fab'd up.
IF there's someone who might have a spare of this piece please consider parting with it for a fair price.
Any and all help very welcome.
Thanks
Jack

forjack842

Msybe I'm just not describing this right. I now believe the front dual hinge with adjuster is the what moves the seat forward and up/down to some extent. Is the next layer of seat assembly a flat oak wood type frame that mounts to the top of the dual hinge? And is this the same piece that the seat bolts down on? Also, is there some sort of wheel that is mounted on the back right and left of the wood frame that allows the seat to move across the floor carpet as the seat is adjusted?

I would guess this is a common for many of the Essex and Hudsons from 28 throught 30.
Any help greately appreciated
Jack