Short answer: Yes.
Long answer:
Wick got neutered at 8-9 months old. He is a netherland dwarf as well and weighed 0.923kg the day of his neuter. His testicle descended a month before the neuter (late bloomer), and I’m unsure when the second descended, but both were dropped by the time the neuter occurred (1 month later).
A large part of surgery success is the vet’s skill, in my opinion. If the vet feels confident in doing it and your rabbit is healthy, I think it should be considered. Many users comment how their vets cautioned them from spaying/neutering because their rabbits were smaller, and while it could be seen as irresponsible of Wick’s vet, she said “And we’re neutering him, right?” the moment she saw him at the first visit, where he weighed 422g. While cancer risks are not nearly as high as an unspayed female, the hormonal presence for male rabbits can cause some frustrating behaviors for you down the road (i.e. spraying, excessive marking) and maybe for him (e.g. feeling aggressive to defend territory, feeling frustrated by mating urges). This may also make bonding extremely difficult down the line since you are planning to get him a buddy (which is great!). Some may say bonding with an intact male is simply impossible because of the hormonal mating urges and territorial instincts. My Wick never showed any hormonal behaviors, but when one testicle descended at 8 months old, something definitely “clicked”. The week right before the neuter, Wick would spray his pee over the room and at me. Flattering, but I was happy his neuter was less than a week away. Again, no hormonal behaviors at all until that week before the neuter.
I know some facilities do some pre-op blood work to ensure your rabbit’s system can handle the anesthesia as well. This may be something worth discussing with your vet, or another exotic vet.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.