This is my first post on this forum. I bought a Caravelle a few weeks ago and am now fixing the rust on it. This forum has turned out to be very handy when googling

I cannot find new rubber dishes that sit under the rear springs anywhere in the shops around here (I live in Finland). I have welded new "seats" for the springs both up and down, and would like to have those thicker rubbers both up and down. When I took the springs out, there where just some thin plastic/rubber sheet on the upper seat... so the spring had worn through.
Are these fabricated anywhere anymore or do I have to make my own?
Best regards!
Mathias