To bring this up to date.

I bought replacement engine mounts from Leebmann 24 and had my local dealership fit them.

Car is much smoother on start up and shut down. Seems to run much smoother and quieter - pick up is better too.

There is a very, very faint, brief vibration with the foot on the brake but lasts literally second or less and only noticeable with the radio off and probably because I'm looking out for it.

Fingers crossed - this has cured my vibration problem and will help others with similar issues.