I would suggest getting a new carrier/axle package from Drivetrain Direct
www.drivetraindirect.com The Eaton kit is the best out for a street car IMO carbon fiber clutches and the unit is fully rebuildable unlike some Auburns that use cones. You can get a complete kit with axles, carrier, bearings, seals and all for $550. They advertise in MM&FF as well check them out. I would have the gears inspected if everything else is damaged there is a very good chance the gears are also bent or cracked, you can get new ones fairly cheap from Drivetrain Direct or Strange sells their gears for $159.
It could have been much worse, good luck!