You don't need to look any further than here mate:
http://www.greenlightinsurance.com
A proper specialist in performance cars AND they will do you a good discount for mentioning that your a member of Passionford!
Ask to speak with Tony, top bloke!
Sorted my Saph right out!
agreed, i had my RST insured with them when i was 24 with only 1 years ncb and it was less than £700 which i thought was reasonable at the time