They are just adorable! They will make such a beautiful bonded pair!
For Prince's surgery, you shouldnt need to worry about much, its prettysafe and simple for the boys. Make sure you ask your vet for somepost-op pain meds (like metacam). Also, make sure to keep himin his pen/cage for at least 24 hours or so to discourage any strenuousactivity-like jumping and running. You will also want to be sure he iseating and pooping within 24 hours of the surgery. You dontneed to withhold food before or after the surgery (even if the vettells you to) because rabbits cannot vomit. You will alsowant to check the incision a few times a day to be sure theres not anybleeding or excessive swelling (a little swelling is normal).
Other than that, the only thing I can think of is to warn you thatbuckscan still impregnate does until up to 6-7 weeks afterthe surgery..so I would keep him away from Isis for a few months justto be sure.
Hope that answers yourquestions. I cant wait to see more pics of your babies, they are really adorable.
-Haley