Thanks for that. I called the HBird boys and they were very helpful. Turns out I can order a PTC-U package that includes a carrying case, base, battery, charger and power cable for about 150. They also said that my boat transponder would work fine if I can keep it flat. I hope to get all this lined out before we're out of ice.
Success isn't final, failure isn't fatal, it's the courage to continue that counts. WC