Ghast with Piglins in bastions

My idea is that how can you tie ships to the Happy Ghast so that in the bastions the nether ones can spawn in the bastions with ships with piglins with crossbows so that they can shoot at the players And since they are flying, the tip of using lava to burn them does not work. because bastions are easy if you carry lava buckets and gold armor to burn the brutes I would give more variety to the bastions and more difficulty.