In that case I'll give it a try. Thanks
As I think I mentioned above, my plan was to try and do this myself by the addition of spikes. If I can source some that will screw into the wooden plinth (with the pointy end downwards, resting on the turntable support) I can level it by varying how much I screw each one in. Thanks for reminding me though because I haven't actually sourced these yet.
Simon.