Here are a couple of videos of Taira Sensei demonstrating the bunkai of Seipai kata. The first is a demonstration from a national geographic TV show. The second shows what is demonstrated in the first, but broken down and referenced to the kata.
One of the things I like about this is the range. Notice how close they are and then compare that with the lunging punch from 10 feet stuff often presented as “bunkai” in many dojos. This is all done at a realistic distance. Also notice that both hands are constantly busy striking or clearing the way for strikes. No “dead hands” and no putting the hands on the hips or across the chest for no apparent reason (or explained away as “guards”).
It’s an interesting watch and I hope you enjoy it.
All the best,