Cabrio Verdeke in Germany can assist with the soft top in various colours. I have fitted about 10 of their soft tops on varius cars in the past, 190SL, Pagodas, 220S Ponton, 280SE cabrio, VW Beetle and Golf Cabrio. I refurbished and used the original sort top frames.
They might be able to help or point you in the correct direction to get a frame for your car, if you don’t already have one hidden under the soft top cover.
Chris
Cape Town