Make sure you have your license to harvest horseshoe crabs first....
"There is no royal road to this heavy surf-fishing. With all the appliances for comfort experience can suggest, there is a certain amount of hard work to be done and exposure to be bourne as a part of the price of success." From "Striped Bass," Scribner's Magazine, 1881.
I went back to potting my own. I had to pay $1.90 each recently and half the time they don't have any. And forget about fresh bait anymore. Nobody carries fresh/not frozen.