hi
You could try Craig Lister from Extract Property Maintenance. I've used him for all the various jobs needed around my property & he is spot on & reasonably priced.
He has done quite a few jobs where people have removed bidets, converted baths to walk in showers etc. I saw him a couple of days ago & he is just completing a wet room for which he can send you pictures.
I would recommend him but you would need to give him some notice as he is in demand & run off his feet at the moment. His wife Nikki also runs a keyholding / cleaning company - she is my keyholder & I would recommend her as well.
If you send me a PM - I can email Craigs number & email to you.
regards
San