Wouldn't bother with a Cappo now mate - Finding a decent one now is nigh on impossible. You'd have to pay 5-6k for a decent one and have servicing costs higher than your alfa to keep it that way. They're a specialist car now - most owners that have a good one are keeping them off the road.
Sure you could pick up a cheap one, but could you really stomach (as my friend has just had to) paying half the price of the car just to get it through an MOT?