If the vet is experienced with doing neuters and he’s a healthy rabbit, he should do fine. Recovery will take about a week or less. You should ask for pain meds just in case post surgery. His feet should be fine without trimming. Feet are naturally like that, and it helps padding because rabbits don’t actually have feet pads. Their heels are like our elbows, so it’s good to have that fur there for cushioning.
When he’s recovering, you should avoid picking him up too much and prevent him from jumping or climbing too much until a week afterwards. This is to ensure the surgical site doesn’t tear or get strained. Keep hay neat to he doesn’t accidentally poke the site with hay strands as well.
Doing a final evaluation at the neuter day is common. It would be good for you to be there during that to make sure it’s being done. Some people to blood work and such, but not all.
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.