Cage size for two bunnies

[Magick_mogwai]

im considering getting a rescue bun to be a companion for my bunny Gandalf. He’s currently in a 105x72cm cage with several levels and I know I need to expand it for another bunny. I’m considering expanding it to 175x72. He’s 3kg just for an idea of his size. They would also have access to the living room every day. Would my idea make a large enough cage?

 

[samoth]

The RSPCA gives some good guidelines that I used for reference before getting rabbits:

https://www.rspca.org.uk/adviceandwelfare/pets/rabbits/environment