Ah okay. I have experience with a bonded pair of girls then bonding with a boy to form a trio. But not a 3 from scratch. I think I would approach this the same way I would a 1 to 1 bond. Pop them all in neutral space and supervise. You may come across views that girls are hard to bond together, or boys hard to bond together, but honestly, it comes down to the individual rabbits.
Everything will be new to the girls coming in and it should work in your favour. Your boy also having previously lived with another rabbit should also be an advantage.
My approach to bonding is a lot more relaxed then the first bonding experience I had. That was slow going, but nothing too upsetting occurred. Now, I more relaxed and step back a bit. All the recent bondings I’ve done have been for other people. Neutral space and “neutral” person worked wonders. Its harder to be like that when one of your own rabbits is involved. But while they are learning to trust one another, we have to learn to trust them also. We have to be present to break up fighting, but not hover either.
