Hi I’m also from the Philippines and I’m desperately trying to find a vet who knows how to neuter and spay a rabbit. I have an angora rabbit who is 3months old. If you can recommend any vet for that that would be wonderful I live near the quezon city, Fairview. I know how you feel, I think mostly the Philippines have dogs and cats, but no bunny groups lols.
For your first question yes, but I know that in this forum people discourage it. However at the Philippines I have never encountered a rabbit rescue. Dogs and cats yes, but bunnies are so rare that the only way to acquire them is by buying them which is a little sad.
Maturity for bunnies are from 6 month on wards, but some can mature faster. Dr. Cerdy Deloso from PTRC Pets Recovery and Therapy Center in 134 A West Ave Quezon City (Beside Banco de Oro) can check your rabbit since he handles exotic animals including rabbits. Unfortunately he does not neuter and spay a rabbit because he doesn’t have the anestesia for them at the clinic. He knows how, but is reluctant to do it without proper medical facilities. He can check for health, and behavioural changes with your bunny.
You do not need to clean the bunny’s feet as long as it is not smelly or has a little poop on them. Your main concern would be their butt. Do not let any poop stay there or flies could nest and kill the bunnies.