Just for an update I've had a quote from Locktons which is way off the money and that's without asking them about track day cover.
Classic Line though may be a goer. Price is higher than Manning were last year but they will cover up to 6 track days per year. If I do 2 track days it will work out cheaper than have a road policy and separate track day policies. Just need to check out European cover with them.
Thanks for the help here everyone.