A buddy of mine built a 331 stroker for his Fairlane build when he had plans for a resto-mod car. One weekend at the drag strip and his newly built engine was shelved for a BBF. He wound up selling the 331 for about 2/3 of what the rebuild cost him. I'd look around and see what you can find in a similar scenario, I'm quite sure there are changes in projects that will make engines available for cheap.