Bongiorno Sergio Try the the model shop with the english version of my name MANTUA MODELS and SUSSEX MODELS. Good luck John Mantova👍

Very good, I hope you find what you are looking for.

Regards,
Ed

Thanks very much. I know this shop...I buy to his many times also 11944000 but he has not the other 3 accesories. I hope somebody has 11941000 and want to sell. Bye

Hi Sergio59

I found what you are looking for but unfortunately ,The item is temporarily unavailable. Please go to the following link. http://www.cornwallmodelboats.co.uk/acatalog/robbe-fitting-sets.html
go to the bottom of the page, and you will see the parts. You can also send a message, they are very helpful in these matters.

I hope this helps!
Regards,
Ed

PS.
Maybe others might also know of other model shops too.