I agree with Jane - there is absolutely no way I would even consider two males together unless both had been castrated for at least 6 weeks. Uncastrated males have a very strong territorial and mating urge and male bunnies also 'go' straight for the testicles. You are highly likely to end up with a serious fight and serious injuries, I've seen plenty, sadly. If castrating the other chap (if he isn't done already) and keeping the two separate for several weeks until after the most recent op and you can bond them 'properly' on neutral territory several weeks later is an option, then It might be worth you considering (but you will also need to recognise that there is a risk they will not get on even if both neutered). If you can't do this, then please don't take him and attempt the bond, as you are more likely to end up creating a bigger welfare issue than you solve, sadly. I you're unable to take him on that basis, perhaps you could help her find a good home - there is advice on the main rabbit rehome page on how to look for a good home, home check etc to make sure that a bunny up for rehoming doesn't end up somewhere worse than he started.
Good luck with whatever you decide x
