Yes, start calling around.. it really does range. I called around for some estimates in Massachusetts and all of my estimates went from like $200 to $400, that was just to NEUTER since I don't have a female.. everywhere is so different so it's hard to tell.
I ended up getting my males neutered for $70 each due to getting a great discount at the rescue I foster kitties for xoxo
A good idea to do, also, is... go on petfinder.com and find local rabbit rescues, email them all asking for help/assistance, they will know the right place to go. I got an email just recently (after my bunnies had already been neutered) of a great deal with a great vet.. like $80 to neuter and $100 to spay.. so so awesome. I would've went with this deal because their vet was verrry vet savvy.