Jordan, have you tried your own insurance company? Some companies have a provision for historic vehicles and if you put collision on a vehicle for the driving season and leave fire and theft for the rest, they can accomodate you. Make sure you have historic plates and not year of manufacture plates.
Lant's Silver Wheel policy is unbeatable service and price wise but if you can't, you can't. I will gladly trade your problems with being too young for my problems with being too old.
Barry