I would also advise do not give them more space before neutering +2 months after. I'll tell you why.
When they will be ready for bonding (2+ months after neutering) they will need to meet each other in a neutral territory, otherwise they can be trying to protect their turf and it can go into a fight. They are 2 months now, maybe they will stay together for another month or a bit longer so they will be 3-3,5 months, when they start showing signs you can separate them and place each in their individual cage large enough for baby rabbit, min I would say 100x50cm standard rabbit cage with a plastic high base or if you have a dog crate they are high enough to make 2nd level so they can have some exercise, then you train them to use their toilets in a small place, then you can attach a playpen and let them be out of cage for 2-4 hours a day, but stay focused on that their base is their cage and they go back to it for toilet, food and water. When they get that you can make playpen a little bigger or just keep it minimal.
That will be their time between say 3,5 months and 4-4,5 months when they get neutered, so only 2-4 weeks and you use that time for training. Then they are getting neutered same day and go back to their cages for another 2 months, first week they will need to stay with min space so they don't exercise and you remove any shelves to keep them on one level, then they go back to normal and can stay in their cage+playpen until they are ready. Then you create one completely new bonding space for them where they never been before so it's completely new territory for both, and you start from a very small playpen usually, well there are many different methods of bonding you will see and decide later. But in my experience when you keep they space restricted before bonding and then gradually extend their territory they learn your rules much better and all the process gets so much easier since they don't have their places in your home that are their own and don't have to protect them from another rabbit, so they will just start exploring their new territory together, again it's good if you let them do it gradually, expanding their territory gradually over a few weeks or months. It is also important to keep their toilet habits reliable on each level, so they will always go back to their toilet in their homebase when you let them free roam. I know it takes a few months all together but it is rewarding.
Just want to add, you maybe want them to be separated but stay together and communicate through the gate, but I would say they will get stressed more and will keep marking their territory because there's another male rabbit so they will pee into a corner that is closer to the other rabbit, that's for sure. If you completely separate, to put a solid wall between them and maybe you can put them into different corners of the room or in to different rooms and so they can't see and smell each other, they will stay less stressed and in my experience they just stop spraying when they stay completely separated and don't see any competitor around. They are easy to manage then and you can use that time for training.