Thanks for all the welcome messages, I have just received a quote for insurance £1100, this is now not a viable proposition, the 350 was always only going to be a third car.
I can not justify £80 per month just for insurance, for a car that may be used only once or twice in any given month, especially as I add in depreciation.
It looks like I shall have to be satisfied with 'classic' cars complete with 'classic' insurance.