My insurance on the 56 truck is like 25 a month for basic state coverage. I wouldn't know about classic insurance coverage it's probably pricey.
It's getting hard in California to even get basic coverage for anything old. My friend has a 60 olds 88 and can't get covered without first getting it "inspected" by a licensed shop,(we are both ASE master techs,we aren't qualified they told him) and then it the vin has to be verified by the highway patrol in a letter to the insurnace agency. (which costs money they don't do it for free on CHP letterhead) His car isn't a salvage and it's been registered every year since new in California. Sucks, I guess he went shopping around after hearing what the first place told him and found a company that doesn't have those rules but he told me three company's wouldn't even insure vehicles that old.