Hmm, you might have a problem with getting oil pressure to the good rods and the main bearings. The engine might not last any longer, and will blow some more rods, something you don't want, lol.
Maybe plug the oil holes to where the damaged/missing rods once sat, and you'll get the pressure to the other rods, where it'* needed.
If you do get a junker engine, make sure its either got low kms, or if you get something with high kms, replace the oil pump, cam magnet (interrupter) and all of the rod bearings. Its one way you can make sure the new one won't be blowing rods anytime soon!
2009 Pontiac Vibe AWD 2.4
1993 Buick Park Avenue 3800
1984 Chevrolet Citation 2.5 liter four.