Help! I fried my starter....nOOb....

For $460, they probably quoted you a special starter for race engines. The only reason you would need that is to clear custom headers. Just ask for a standard starter for a Magnum engine (Dodge V-8 truck or Jeep Grand Cherokee V-8 from ~1986 to ~2001). Check rockauto. I got my first one at a junkyard for ~$10, including the cable to the battery. I got other rebuilt ones on ebay ~$45 from a place in L.A. Some people suggest the later aren't as good as a junkyard one.