Bathroom sink for 1996 Swift Royale

I am hoping somebody will know where I can source a replacement bathroom sink for my 1996 Swift Royale motorhome. The original was made by Thompson Plastics, but they are unable to help

I posted a similar request a few years ago and received several helpful replies and did find a supplier, but managed to repair the original. In the way of these things the repair has now failed and I can't find my original post and can't remember who the supplier was!

Can anybody help?