Yes that would be fine. I would literally put them in together, don't give them chance to think about each other. Be fast, confident. Don't pamper them or give them reassurance- they need to seek that in each other.
They need to wonder what is up with their bunny mummy- and seek comfort in each other. A new environment is frightening, especially if they are put together unexpectedly. If it's too safe they will feel confident enough to turn on one another.
I find making the environment as uncomfortable as possible works. Usually that's just by my mannerisms that makes them think, what is going on with our mummy. They huddle initially, then they start exploring each other.
If they start being too forward with each other. I say no firmly, I don't interfere, my voice is enough to make them reconsider turning on each other, then shortly within 3 days max, they are fine and live happily ever after
Be quiet throughout the process and don't talk to them except to say no, but be careful when you say this. Don't distract them unnecessarily. xx
P.s if it's a crate you can carry around the room- do that. Or just get them in a carrier first that is neutral and walk the around, then expand from there. If it's not meant to be, you will know. Bonding shouldn't be that hard. Buns like each other of they don't. The ones that don't, will require a load more work.