Classic policies are great, but be aware that with most you need to be over 25 and run a daily driver seperate to the one on the classic policy. The car must be garaged and quite often does not include commuting. Mileage restrictions vary between 1-7k p/a.
You don't always need to have NCBs either, especially if you use another car. I have my 911 on a classic policy, limited to 6000 miles p/a, I don't use my NCBs for it, although it does acrue them. Its £350, but its not garaged at the moment. The GTi is on a bog standard policy as a daily driver, using my NCBs its £200 fully comp.
Shop around, but its not always that easy to get one for a daily driver that does 10k miles p/a and is left on the street.