I have both my "specialty" trucks insured, along with my other vehicles with a large well-known insurance company. With my multi-line discount, my premiums for "full coverage" pip, liability, $50. deductible comp and collision and road service and a reasonable agreed value runs me $206/year. There is no "garage" provision but there are some reasonable mileage restrictions. I have another vehicle designated as my "primary."
In recent years the national companies have made some changes in their view of "specialty" vehicles and you might be pleasantly surprised if you get a quote from them. Just something to think about!!!