Make SURE he reseals the front pump. You do not want to have to pull it again if it starts dumping fluid everywhere.
B3 bands + reseal front pump is sufficient to keep you going. You can also opt to use higher quality transmission fluid since he will be completely draining it.
I highly recommend Redline Synthetic D4. It is the best fluid for the 722.3...hands down. I don't recommend synthetic for these older engines, but this fluid for the transmission is king
