Large diameter flywheel requires machining

[Andy H]

Hi
Does anyone know where I can get a flywheel casting turned somewhere reasonably close to Launceston on the Devon Cornwall border. The flywheel is 26in outside diameter so it needs to be held on a 2ft chuck. It is too large for my lathe and I have tried everyone I know near me and the swing does not seem to be a problem it is the chuck size.
The flywheel has spokes and is for a 6in Burrell from Little Samson. There is no rush at all.
Any help would be much appreciated.
Thanks
Andy