Again it all depends on usage and your requirements.

I struggled to get anywhere to make me a 2 piece when I told them what I was doing with it. Making it wasnt difficult, but most places didnt want any risk attached to their names if it was to break.

Hell, even halfshafts, one huge company in the US making supposedly strong shafts refused to sell them to me in case they broke because they were drag specific shafts and should not be used on the road. I think because the driving flanges were pure shite and couldnt take side loadings. Like WTF ???

Either they make a proper product or they dont, clearly they dont despite all their website bullshit.

My first 2 piece shaft was made by South Carolina Driveline in the US, was very good and also very cheap.
I then discovered a larger centre bearing from another company and they made me a new shaft, slightly different and with the larger joint.
Inland Empire Driveline Service made my my current shaft, not much different but was quite a bit more expensive.

No idea if anywhere in the UK can make the same. Dont see why not, as the parts are just readily available parts from shaft/UJ suppliers etc.