Rear End Carnage!!!!!

Needing a little help from that awesome mopar community. Went out last night to "Break-In" a new carb on a healthy 440-4 speed car with a 8 3/4 rear, and redefined the term break-in. Ended up chunking the rear end.

From a quick visual, I found that the carrier main caps broke. (if thats adequate for the damage that resulted)

So big question is..... are there billet caps? Or are they even replaceable without replacing the whole center section? (tried to do some searching on the WWW....) Or does someone recommend something else to beef up the 8 3/4. Would like to stay away from buying/building a dana.

And without further interruption..... let the carnage be seen!