Once again your string of luck continues. While you had catastrophic failure, you didn't lose the one thing you couldn't replace. Your life. Hell you didn't even hit the retaining wall. Its much less work to replace just the engine than to replace the engine and the whole right side. Its kinda suprising that you didn't have any indication during the run that something was gonna come undone like that. Maybe it was the car's way of telling you that it didn't like that engine.

As for your next endine....There's no replacement for displacement.