I looked at Admiral when I recently purchased my Williams and were pretty cheap. however ended up with Peter Best Classic insurance
http://www.peterbestinsurance.co.uk/ amazing deal happy to talk about non standard items, agreed values (just submit a few photos) with zero no claims I got my willy 3 insured fully comp with a £50 excess (yes £50) for £240 inc 12 months full breakdown cover. Worth giving them a call? I'm 34, no convictions etc with mileage limited to 3k
I thought about calling them see if I could negotiate a club discount?