Generally speaking if you go with collector car insurance you need another daily driver. This is not a bad thing if you have room in the garage/carport/street for two vehicles. When one is out for repairs you can drive the other one. Saves lots of money on car repair labour costs.
If the daily driver is a cheap car with cheap insurance you can save some real bucks.
Generally collector insurance is cheap (they recognize you likely have spent a lot of time on it and won't drive it like a hoopty). There are restrictions that vary from company to company like: can't drive it to work or school (that's what your daily driver is for). That way you're not driving it when you're likely to have a road rage incident in rush hour traffic, show off to that line of sorority sisters/ cheerleaders/ cute girl in chem. class etc.
Sometimes the mileage is limited as pleasure use should be less than daily transportation. Sometimes the car which generally has to be approved has to be visually original with limited period upgrades with sometimes exceptions for safety items like brakes etc.
If not going the collector insurance route (Hagerty, Grundy etc.) best to call around to see what's available locally for a daily driver type insurance. When you have couple of lower quotes Google them and see what others say about them.
TR7 Spider - 1978 Spitfire - 1976 Spitfire - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - Yellow TCT