what about a 413

This thread got my attention because I almost picked up a 413 on Saturday. It was supposed to be out of a mid '70s RV and included its 727. I didn't even know they made a 413 RV engine. I can get a 440 out of a mid '70s RV, a BB 727, and a Dana 60 housing for $250 more than the 413. I passed on this. Does it sound like a deal? I don't NEED the 413 or the 440 since I've got a '74 440 and 727 out of a C body I'm not using right now. But you can never have too many BB engines floating around, can you?