Rear seat needed for 1992 300SL

I have a LHD 1992 Mercedes 300SL to which I want to install the small seat in the rear in place of the 2x storage bins.
Can this be done ? has anyone done it ? and does anyone know of any Mercedes
parts places in the UK where I can try and get one of these seats.
I would also consider a seat from northern Germany where I travel every now and then and would be able to pick one up.
Cheers Dave.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.