Replaced both 600 mile old Febi front top mounts with Pedders heavy duty Monaro ones... job jobbed 
Febi mounts showed no obvious damage, but top plate now sits a 1/4" off the wing and exactly where I expected it to be, rather than the 1/2" of the Febi ones 
Interesting... given my identical issue. How much were the bits?
Today, I have removed the CD player from the MV6 to get the code off the side - buggering it in the process. Also removed the radio from the 190, discovered the aerial fittings were different, had a paddy, and put the old one back in. I don't get on with radios, clearly.
I've also replaced the rear donuts on the Special, given the surrounding chassis some BH treatment, slapped some Hammerite on the suspension arms, refitted the rear brake lamp... Greased everything that moves on the 190, fitted some stonking new headlamp bulbs and taillamps... derusted and painted the spare wheels for it (with tyres made of real rubber rather than melted Chinese Lego), painted the bush covers for the Special... I've just spent a few hours running between cars as and when I thought of things that I needed to do.
I fully expect to go out and find that I've fitted a 190 wheel into the centre console of the MV6, and painted the Special's radio...