Help! How to convert entity data into an item!

So I'm working on a Java 1.19.2 mod where the player can make an item that then when right clicked on certian spirit mobs such as Allays, will despawn the mob and give the player a new item containing that mob, then the player can right click the ground and respawn that mob in a different area. Almost like Safari Nets if anyone remembers that mod. My question is how do I convert data such as if the mob is Name Tagged or the mob's Health into an item, and then how do I make it so it spawns an exact copy of the mob when right clicking a block? <3